Materiały źródłowe

• #1 Delayed sleep-wake phase disorder – UpToDate

  https://www.uptodate.com/contents/delayed-sleep-wake-phase-disorder

  Delayed sleep-wake phase disorder (DSWPD) is the most commonly encountered circadian rhythm sleep-wake phase disorder in adolescents. […] This topic reviews the clinical features, diagnosis, and management of DSWPD. […] EVALUATION AND DIAGNOSIS includes clinical history, sleep logs and actigraphy, morningness-eveningness questionnaire, other testing, and diagnostic criteria. […] The prevalence of delayed sleep-wake phase disorder (DSWPD) is highest in adolescents and young adults, with rates estimated between 3.3 and 4.6 percent. […] The prevalence of DSWPD in adults is lower, with estimates between 0.2 to 1.7 percent.

• #2 Treating delayed sleep–wake phase disorder in young adults

  https://pmc.ncbi.nlm.nih.gov/articles/PMC5573579/

  A 27-year-old man reports severe insomnia. […] The diagnosis of delayed sleepwake phase disorder (DSWPD) was confirmed with 4 weeks of sleepwake log and actigraphic recordings. […] Delayed sleepwake phase disorder is the most frequent circadian rhythm disorder, with an estimated prevalence of 7%16% in adolescents and 0.13%3.1% in the general adult population. […] The 2015 American Academy of Sleep Medicine (AASM) practice guidelines for the treatment of circadian rhythm sleepwake disorders recommend strategically timed melatonin for the treatment of DSWPD in adults, children and adolescents with or without psychiatric comorbidities, although the available evidence is weak (owing to the low number of high-quality studies). […] The 2015 AASM practice guidelines found insufficient evidence to recommend bright light exposure, light avoidance strategies, or chronotherapy for the treatment of DSWPD. […] In conclusion, DSWPD is a common circadian rhythm disorder affecting mostly adolescents and young adults.

• #3 Delayed sleep phase disorder – Wikipedia

  https://en.wikipedia.org/wiki/Delayed_sleep_phase_disorder

  Delayed sleep phase disorder (DSPD), more often known as delayed sleep phase syndrome and also as delayed sleep-wake phase disorder, is the delaying of a person’s circadian rhythm (biological clock) compared to those of societal norms. […] The diagnosis of this disorder is currently a point of contention among specialists of sleep disorders. […] DSPD is frequently misdiagnosed or dismissed. It has been named as one of the sleep disorders most commonly misdiagnosed as a primary psychiatric disorder. […] DSPD is often confused with psychophysiological insomnia; depression; psychiatric disorders such as schizophrenia, ADHD or ADD; other sleep disorders; or school refusal. Practitioners of sleep medicine point out the dismally low rate of accurate diagnosis of the disorder, and have often asked for better physician education on sleep disorders.

• #4 Delayed Sleep Phase Syndrome: Causes, Symptoms & Treatments

  https://www.healthline.com/health/sleep-deprivation/delayed-sleep-phase-syndrome

  DSPS is often misdiagnosed. […] If you or your child has sleep issues, talk to a sleep specialist. You should also see a doctor if you have delayed sleep for at least seven days. […] A sleep specialist can do different tests to determine if you have DSPS. […] This might include the following: Gathering medical history. This helps your doctor understand your family history and symptoms. […] Request a sleep log. Your doctor might have you write down when you fall asleep and wake up each day. […] Actigraphy. You’ll wear a wrist device that tracks your sleep-wake patterns. […] Polysomnogram. If your doctor thinks you have a different sleep disorder, they might request an overnight sleep test called a polysomnogram.

• #5 Delayed sleep phase disorder – Wikipedia

  https://en.wikipedia.org/wiki/Delayed_sleep_phase_disorder

  DSPD is diagnosed by a clinical interview, actigraphic monitoring, and/or a sleep diary kept by the patient for at least two weeks. When polysomnography is also used, it is primarily for the purpose of ruling out other disorders such as narcolepsy or sleep apnea. […] Incorporating minor updates (ICSD-3, 2014), the diagnostic criteria for delayed sleep phase disorder are: An intractable delay in the phase of the major sleep period occurs in relation to the desired clock time, as evidenced by a chronic or recurrent (for at least three months) complaint of inability to fall asleep at a desired conventional clock time together with the inability to awaken at a desired and socially acceptable time. […] Patients have little or no reported difficulty in maintaining sleep once sleep has begun. […] The symptoms do not meet the criteria for any other sleep disorder causing inability to initiate sleep or excessive sleepiness.

• #6 Delayed sleep-wake phase disorder | MedLink Neurology

  https://www.medlink.com/articles/delayed-sleep-wake-phase-disorder

  Delayed sleep-wake phase disorder (DSWPD) is characterized by late bedtime and wake times and an inherent delay of biological rhythms compared to the natural daylight. […] Delayed sleep-wake phase disorder must be distinguished from other sleep disorders as the treatment approach is different. […] Actigraphy or a sleep diary tracking the patients sleep wake pattern for at least 7 and preferably 14 days is essential to making the diagnosis of delayed sleep wake phase disorder. […] The ICSD-3 established five diagnostic criteria that must be met for the diagnosis of delayed sleep-wake phase disorder: (1) there is a significant delay in the major sleep episode compared to the desired or required wake time and sleep time; (2) symptoms last for at least 3 months; (3) when patients are free to choose their own sleep schedule, they show improved sleep quality and duration. They maintain a delayed phase in their sleep-wake pattern; (4) sleep logs and, if possible actigraphy, for at least 7 and preferably 14 days show delay in timing of the sleep period; (5) the sleep disturbance is not better explained by another etiology. […] Polysomnography is not indicated in typical cases of delayed sleep-wake phase disorder.

• #7 Delayed Sleep Phase Disorder (Delayed Sleep Phase Syndrome) | The Better Sleep Clinic

  https://thebettersleepclinic.com/sleep-disorders/delayed-sleep-phase-disorder

  Delayed Sleep-Wake Phase Disorder (DSWPD) is characterized by a persistent pattern of sleep-wake timing that is significantly delayed relative to conventional or desired fall asleep and wake times. The primary symptoms include: […] According to the International Classification of Sleep Disorders, 3rd Edition (ICSD-3), the diagnosis of DSWPD requires the following criteria to be met: A significant delay in the major sleep episode relative to desired or required sleep and wake-up times […] A comprehensive sleep history is crucial for diagnosing DSWPD. Clinicians should inquire about: Typical sleep and wake times on both work/school days and free days […] Quantitative data on sleep-wake patterns are essential for diagnosis. A sleep study is not typically required. Instead, patients are typically asked to keep a sleep diary (aka sleep log) for 1-2 weeks to provide insight into sleep cycles.

• #8 Delayed sleep phase disorder – Wikipedia

  https://en.wikipedia.org/wiki/Delayed_sleep_phase_disorder

  DSPD is diagnosed by a clinical interview, actigraphic monitoring, and/or a sleep diary kept by the patient for at least two weeks. When polysomnography is also used, it is primarily for the purpose of ruling out other disorders such as narcolepsy or sleep apnea. […] Incorporating minor updates (ICSD-3, 2014), the diagnostic criteria for delayed sleep phase disorder are: An intractable delay in the phase of the major sleep period occurs in relation to the desired clock time, as evidenced by a chronic or recurrent (for at least three months) complaint of inability to fall asleep at a desired conventional clock time together with the inability to awaken at a desired and socially acceptable time. […] Patients have little or no reported difficulty in maintaining sleep once sleep has begun. […] The symptoms do not meet the criteria for any other sleep disorder causing inability to initiate sleep or excessive sleepiness.

• #9 2025 ICD-10-CM Diagnosis Code G47.21: Circadian rhythm sleep disorder, delayed sleep phase type

  https://www.icd10data.com/ICD10CM/Codes/G00-G99/G40-G47/G47-/G47.21

  G47.21 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. […] Applicable To: Delayed sleep phase syndrome. […] A subtype of circadian rhythm sleep disorder in which the individual exhibits a persistent pattern of late sleep onset and late awakening, which results from an endogenous sleep-wake cycle that is delayed relative to the societal norm.

• #10 Circadian Rhythm Sleep Disorder DSM-5 307.45 (ICD-9-CM, Multiple Codes)

  https://www.theravive.com/therapedia/circadian-rhythm-sleep-disorder-dsm–5-307.45-(icd–9–cm%2C-multiple-codes)

  CRSD are a class of sleep disorders in which there is a discrepancy between the desired time to go to sleep, maintain sleep, and awake. […] According to the DSM-5, CRD is a sleep disorder characterized by a discrepancy between the internal setting of ones circadian clock, and the sleep wake schedule required by ones occupational/educational or social obligations. The sleep disruption leads to fatigue and/or insomnia. […] 307.45 (G47.21) Delayed sleep phase type: Delayed onset of sleep and poor maintenance of sleep, with an inability to fall asleep or wake at the desired time. […] In teens and young adults, Delayed sleep phase type is more common. […] A polysomnograph, or overnight sleep study, should be performed to properly diagnose the type and severity of the sleep disorder.

• #11 Delayed sleep phase – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/delayed-sleep-phase/diagnosis-treatment/drc-20353341

  To diagnose delayed sleep phase, also known as delayed sleep-wake phase disorder, a health care professional reviews your family and medical history. You also may have a physical exam. […] You may need several tests to diagnose delayed sleep phase or any related conditions, such as: […] Actigraphy. This test tracks your sleep and wake times over several days. During the test, you wear a small device on your wrist that detects your motions. The device also may monitor light exposure. […] Sleep diary. You may need to keep a sleep diary for a week or longer. Log your daily sleep and wake times to understand your sleep pattern. […] Sleep study, also known as polysomnography. If it’s suspected that you might have an additional sleep disorder, you may need a sleep study. In this test, you stay in a sleep center overnight. Polysomnography monitors your brain activity, heart rate, oxygen levels, eye movements and breathing function as you sleep.

• #12 Delayed Sleep Phase Syndrome: Causes, Symptoms & Treatments

  https://www.healthline.com/health/sleep-deprivation/delayed-sleep-phase-syndrome

  DSPS is often misdiagnosed. […] If you or your child has sleep issues, talk to a sleep specialist. You should also see a doctor if you have delayed sleep for at least seven days. […] A sleep specialist can do different tests to determine if you have DSPS. […] This might include the following: Gathering medical history. This helps your doctor understand your family history and symptoms. […] Request a sleep log. Your doctor might have you write down when you fall asleep and wake up each day. […] Actigraphy. You’ll wear a wrist device that tracks your sleep-wake patterns. […] Polysomnogram. If your doctor thinks you have a different sleep disorder, they might request an overnight sleep test called a polysomnogram.

• #13 Delayed Sleep Phase Disorder (Delayed Sleep Phase Syndrome) | The Better Sleep Clinic

  https://thebettersleepclinic.com/sleep-disorders/delayed-sleep-phase-disorder

  Delayed Sleep-Wake Phase Disorder (DSWPD) is characterized by a persistent pattern of sleep-wake timing that is significantly delayed relative to conventional or desired fall asleep and wake times. The primary symptoms include: […] According to the International Classification of Sleep Disorders, 3rd Edition (ICSD-3), the diagnosis of DSWPD requires the following criteria to be met: A significant delay in the major sleep episode relative to desired or required sleep and wake-up times […] A comprehensive sleep history is crucial for diagnosing DSWPD. Clinicians should inquire about: Typical sleep and wake times on both work/school days and free days […] Quantitative data on sleep-wake patterns are essential for diagnosis. A sleep study is not typically required. Instead, patients are typically asked to keep a sleep diary (aka sleep log) for 1-2 weeks to provide insight into sleep cycles.

• #14 Delayed Sleep Phase Syndrome: Symptoms, Causes, and Treatment

  https://www.verywellmind.com/delayed-sleep-phase-syndrome-symptoms-causes-and-treatment-7110083

  Delayed sleep phase syndrome (DSPS) is a circadian rhythm sleep disorder that can cause your sleep-time and wake-time to be much later than most peoples. […] If you suspect you or a loved one may have delayed sleep phase syndrome, you should see a sleep specialist. Your primary care provider can provide a referral if you need it. […] The diagnostic process may involve the following steps: Clinical interview: Your healthcare provider will inquire about your medical history, symptoms, and lifestyle. They will need to understand your natural sleeping pattern and how its affecting your ability to function. […] A sleep study can help monitor parameters such as your heart rate, brain waves, breathing, oxygen levels, and eye and leg movements, while youre asleep. […] Delayed sleep phase disorder can make it hard for you to get enough sleep on most days, which can affect your health, safety, and well-being. Taking steps to treat the condition and reset your body clock can help improve your health, your performance at work/school, and your social and family life.

• #15 Delayed sleep phase – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/delayed-sleep-phase/diagnosis-treatment/drc-20353341

  To diagnose delayed sleep phase, also known as delayed sleep-wake phase disorder, a health care professional reviews your family and medical history. You also may have a physical exam. […] You may need several tests to diagnose delayed sleep phase or any related conditions, such as: […] Actigraphy. This test tracks your sleep and wake times over several days. During the test, you wear a small device on your wrist that detects your motions. The device also may monitor light exposure. […] Sleep diary. You may need to keep a sleep diary for a week or longer. Log your daily sleep and wake times to understand your sleep pattern. […] Sleep study, also known as polysomnography. If it’s suspected that you might have an additional sleep disorder, you may need a sleep study. In this test, you stay in a sleep center overnight. Polysomnography monitors your brain activity, heart rate, oxygen levels, eye movements and breathing function as you sleep.

• #16 Delayed Sleep Phase Syndrome (DSPS) Explained – Sleep Advisor

  https://www.sleepadvisor.org/delayed-sleep-phase-syndrome/

  Keeping notes about your sleep cycles could help your doctor identify issues. Your physician may ask you to keep a diary to log your patterns to help them create an effective treatment plan for your individual needs. […] A polysomnogram is a test in which you stay overnight in a sleep center for observation. A polysomnogram will monitor your brain activity, oxygen levels, heart rate, eye movements, and breathing while you sleep.

• #17 Delayed Sleep Phase Syndrome (DSPS): Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/14295-delayed-sleep-phase-syndrome-dsps

  Delayed sleep phase syndrome (DSPS) is a shift in your biological clock that makes it difficult to fall asleep and wake up. […] Treatment is available to help you reset your internal clock. […] Delayed sleep phase syndrome (DSPS) is a condition that affects your ability to fall asleep and wake up on time. […] To diagnose delayed sleep phase syndrome, a healthcare provider or sleep specialist will ask you to describe your symptoms and keep a sleep diary or sleep log. […] To confirm a diagnosis, your healthcare provider may ask you to wear a device called an actigraph that records cycles of rest and activity. […] In addition, your provider might perform dim light melatonin testing (DLMO), polysomnography (PSG or sleep study) and a multiple sleep latency test (MSLT). […] A healthcare provider may recommend the following to treat delayed sleep phase syndrome: changing your sleeping habits, adjusting your bedtime schedule, light therapy, and taking medications.

• #18 Delayed Sleep Phase

  https://mobile.fpnotebook.com/Psych/Peds/DlydSlpPhs.htm

  Delayed Sleep Phase Disorder (Delayed Sleep-Wake Phase Disorder) […] Diagnostics […] Sleep diary […] Keep diary for 7-14 days including weekends […] Log sleep times before and after intervention […] Actigraphy monitoring for at least 1 week […] Accelerometer monitors patients overnight movement […] Calculates actual patient sleep time […] Diagnosis […] Late sleep onset with difficulty initiating sleep AND […] Late wake-up time AND […] Excessive Daytime Sleepiness and functional Impairments for at least 3 months.

• #19 What Is Delayed Sleep Phase Syndrome (DSPS)? – Stellar Sleep

  https://stellarsleep.com/learn/delayed-sleep-phase-syndrome/

  Delayed sleep phase syndrome is a kind of circadian rhythm sleep disorder. […] If you feel constantly tired, or have a problem waking or falling asleep, you may want to go to a sleep specialist. […] DSPS is a disorder that is hard to distinguish from normal disturbances in sleep due to hectic routines, which is why it’s often misdiagnosed. […] Here are some of the diagnostic criteria for DSPS: A delay in the phase of major sleep period in relation to the desired sleep time, for at least three months. […] Complaint of inability to fall asleep at a standard time with the inability to wake up at a socially acceptable time. […] When not required to maintain a strict schedule, patients show improved sleep quality and duration for their age. […] Patients have no difficulty in maintaining sleep once sleep has begun. […] Sleep-wake logs for at least two weeks document a consistent pattern of sleep, usually later than 2 am, and lengthy periods of sleep. […] The symptoms do not meet the criteria for any other sleep disorder causing the inability to initiate sleep or excessive sleepiness.

• #20 Delayed sleep phase – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/delayed-sleep-phase/diagnosis-treatment/drc-20353341

  To diagnose delayed sleep phase, also known as delayed sleep-wake phase disorder, a health care professional reviews your family and medical history. You also may have a physical exam. […] You may need several tests to diagnose delayed sleep phase or any related conditions, such as: […] Actigraphy. This test tracks your sleep and wake times over several days. During the test, you wear a small device on your wrist that detects your motions. The device also may monitor light exposure. […] Sleep diary. You may need to keep a sleep diary for a week or longer. Log your daily sleep and wake times to understand your sleep pattern. […] Sleep study, also known as polysomnography. If it’s suspected that you might have an additional sleep disorder, you may need a sleep study. In this test, you stay in a sleep center overnight. Polysomnography monitors your brain activity, heart rate, oxygen levels, eye movements and breathing function as you sleep.

• #21 Delayed Sleep Phase Syndrome (DSPS): Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/14295-delayed-sleep-phase-syndrome-dsps

  Delayed sleep phase syndrome (DSPS) is a shift in your biological clock that makes it difficult to fall asleep and wake up. […] Treatment is available to help you reset your internal clock. […] Delayed sleep phase syndrome (DSPS) is a condition that affects your ability to fall asleep and wake up on time. […] To diagnose delayed sleep phase syndrome, a healthcare provider or sleep specialist will ask you to describe your symptoms and keep a sleep diary or sleep log. […] To confirm a diagnosis, your healthcare provider may ask you to wear a device called an actigraph that records cycles of rest and activity. […] In addition, your provider might perform dim light melatonin testing (DLMO), polysomnography (PSG or sleep study) and a multiple sleep latency test (MSLT). […] A healthcare provider may recommend the following to treat delayed sleep phase syndrome: changing your sleeping habits, adjusting your bedtime schedule, light therapy, and taking medications.

• #22 Delayed Sleep Phase Syndrome (DSPS) Explained – Sleep Advisor

  https://www.sleepadvisor.org/delayed-sleep-phase-syndrome/

  Delayed Sleep Phase Disorder (DSPD), officially known as Sleep-Wake Phase Disorder, is when the disruption of the circadian rhythm inhibits ones ability to function in day-to-day life properly. This sleep disorder most often presents itself as difficulty waking and preparing for everyday routines such as attending school or getting to work. […] If you constantly find yourself struggling to wake up or go to bed at the desired time, you may have DSPD, and seeking professional testing and treatment is an option. […] In an actigraphy test, you’ll wear a small device, also referred to as an actimetry sensor, which is similar to a watch, for a week or more to measure your at-home sleep-wake activity. Actigraphy is a non-invasive technique for monitoring behavior to help determine issues and an effective treatment method.

• #23 Delayed sleep phase syndrome: Effects, diagnosis, and more

  https://www.medicalnewstoday.com/articles/delayed-sleep-phase-syndrome-effects-diagnosis-and-more

  Delayed sleep phase syndrome (DSPS) is a chronic circadian rhythm disorder that causes a person to sleep late and wake up late. […] A doctor may diagnose DSPS based on the description of symptoms. They may also ask a person to record their sleeping behavior for a few weeks before they make a diagnosis. […] Other diagnostic tools for DSPS may include: Actigraphy: This is where a person wears a small device similar to a wristwatch. It records movement and light to determine whether they are awake or asleep. This can take place at the persons home. […] Polysomnograph: People may wish to participate in a sleep study to find out whether they have DSPS. This involves staying overnight at a facility where experts monitor their sleep.

• #24 Delayed Sleep Phase

  https://mobile.fpnotebook.com/Psych/Peds/DlydSlpPhs.htm

  Delayed Sleep Phase Disorder (Delayed Sleep-Wake Phase Disorder) […] Diagnostics […] Sleep diary […] Keep diary for 7-14 days including weekends […] Log sleep times before and after intervention […] Actigraphy monitoring for at least 1 week […] Accelerometer monitors patients overnight movement […] Calculates actual patient sleep time […] Diagnosis […] Late sleep onset with difficulty initiating sleep AND […] Late wake-up time AND […] Excessive Daytime Sleepiness and functional Impairments for at least 3 months.

• #25 Delayed sleep phase – Diagnosis and treatment – Mayo Clinic

  https://www.mayoclinic.org/diseases-conditions/delayed-sleep-phase/diagnosis-treatment/drc-20353341

  To diagnose delayed sleep phase, also known as delayed sleep-wake phase disorder, a health care professional reviews your family and medical history. You also may have a physical exam. […] You may need several tests to diagnose delayed sleep phase or any related conditions, such as: […] Actigraphy. This test tracks your sleep and wake times over several days. During the test, you wear a small device on your wrist that detects your motions. The device also may monitor light exposure. […] Sleep diary. You may need to keep a sleep diary for a week or longer. Log your daily sleep and wake times to understand your sleep pattern. […] Sleep study, also known as polysomnography. If it’s suspected that you might have an additional sleep disorder, you may need a sleep study. In this test, you stay in a sleep center overnight. Polysomnography monitors your brain activity, heart rate, oxygen levels, eye movements and breathing function as you sleep.

• #26 Delayed sleep phase syndrome: Effects, diagnosis, and more

  https://www.medicalnewstoday.com/articles/delayed-sleep-phase-syndrome-effects-diagnosis-and-more

  Delayed sleep phase syndrome (DSPS) is a chronic circadian rhythm disorder that causes a person to sleep late and wake up late. […] A doctor may diagnose DSPS based on the description of symptoms. They may also ask a person to record their sleeping behavior for a few weeks before they make a diagnosis. […] Other diagnostic tools for DSPS may include: Actigraphy: This is where a person wears a small device similar to a wristwatch. It records movement and light to determine whether they are awake or asleep. This can take place at the persons home. […] Polysomnograph: People may wish to participate in a sleep study to find out whether they have DSPS. This involves staying overnight at a facility where experts monitor their sleep.

• #27 Delayed Sleep Phase Syndrome: Symptoms, Causes, and Treatment

  https://www.verywellmind.com/delayed-sleep-phase-syndrome-symptoms-causes-and-treatment-7110083

  Delayed sleep phase syndrome (DSPS) is a circadian rhythm sleep disorder that can cause your sleep-time and wake-time to be much later than most peoples. […] If you suspect you or a loved one may have delayed sleep phase syndrome, you should see a sleep specialist. Your primary care provider can provide a referral if you need it. […] The diagnostic process may involve the following steps: Clinical interview: Your healthcare provider will inquire about your medical history, symptoms, and lifestyle. They will need to understand your natural sleeping pattern and how its affecting your ability to function. […] A sleep study can help monitor parameters such as your heart rate, brain waves, breathing, oxygen levels, and eye and leg movements, while youre asleep. […] Delayed sleep phase disorder can make it hard for you to get enough sleep on most days, which can affect your health, safety, and well-being. Taking steps to treat the condition and reset your body clock can help improve your health, your performance at work/school, and your social and family life.

• #28 Delayed Sleep Phase Syndrome (DSPS) Explained – Sleep Advisor

  https://www.sleepadvisor.org/delayed-sleep-phase-syndrome/

  Keeping notes about your sleep cycles could help your doctor identify issues. Your physician may ask you to keep a diary to log your patterns to help them create an effective treatment plan for your individual needs. […] A polysomnogram is a test in which you stay overnight in a sleep center for observation. A polysomnogram will monitor your brain activity, oxygen levels, heart rate, eye movements, and breathing while you sleep.

• #29 How to Identify and Treat Delayed Sleep Phase Syndrome – eachnight

  https://eachnight.com/sleep/delayed-sleep-phase-syndrome/

  Delayed Sleep Phase Syndrome: This syndrome involves a significant delay in a persons natural sleep-wake cycle. People with this condition typically struggle to fall asleep at a conventional bedtime and may experience their most restful sleep during unconventional hours, such as the late morning. […] Diagnosing this syndrome often requires the assistance of a medical professional who might use techniques like actigraphy, sleep logs, or polysomnograms. […] In order to diagnose Delayed Sleep Phase Syndrome, its important to seek professional help. It would be difficult to do so by yourself, as its not easy to monitor your own sleep. A somnologist, or sleep doctor, would likely choose one of three ways to diagnose a person who might have Delayed Sleep Phase Syndrome. […] A somnologist may also ask you to keep a sleep log. This would require you to track what time you wake up and when you went to bed. […] Finally, your doctor might recommend a polysomnogram. This requires you to spend a night at a sleep center. […] These overnight experiences arent just for Delayed Sleep Phase Syndrome. A polysomnogram is actually used to diagnose most sleep disorders.

• #30 Delayed Sleep Phase Syndrome (DSPS): Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/14295-delayed-sleep-phase-syndrome-dsps

  Delayed sleep phase syndrome (DSPS) is a shift in your biological clock that makes it difficult to fall asleep and wake up. […] Treatment is available to help you reset your internal clock. […] Delayed sleep phase syndrome (DSPS) is a condition that affects your ability to fall asleep and wake up on time. […] To diagnose delayed sleep phase syndrome, a healthcare provider or sleep specialist will ask you to describe your symptoms and keep a sleep diary or sleep log. […] To confirm a diagnosis, your healthcare provider may ask you to wear a device called an actigraph that records cycles of rest and activity. […] In addition, your provider might perform dim light melatonin testing (DLMO), polysomnography (PSG or sleep study) and a multiple sleep latency test (MSLT). […] A healthcare provider may recommend the following to treat delayed sleep phase syndrome: changing your sleeping habits, adjusting your bedtime schedule, light therapy, and taking medications.

• #31

  https://link.springer.com/article/10.1007/s41105-023-00454-4

  Delayed sleepwake phase disorder (DSWPD) is a circadian rhythm sleep disorder characterised by a delay in the main sleep period, with patients experiencing difficulty getting to sleep and waking up at socially appropriate times. […] Circadian phase markers such as core body temperature and circulating melatonin typically correlate well with sleep timing in healthy patients, but numerous variations exist in DSWPD patients that can make these unpredictable for use in diagnostics. […] This review collates what is known on the causes and treatments of DSWPD, addresses the pitfalls in diagnosis and discusses the implications of current data on modified sleep homeostasis, making clinical recommendations and directing future research. […] Clinical efficacy of dim light melatonin onset testing in diagnosing delayed sleep phase syndrome.

• #32 Ask the Doctor: Delayed Sleep Phase Syndrome or Idiopathic Hypersomnia? – Hypersomnia Foundation

  https://www.hypersomniafoundation.org/ask-the-doctor-delayed-sleep-phase-syndrome-or-ih/

  What is delayed sleep phase syndrome (DSPS) and how is it diagnosed? Should it be ruled out before a diagnosis of idiopathic hypersomnia (IH) is made? […] The diagnosis of delayed sleep phase syndrome, also called delayed sleep-wake phase disorder (DSWPD), is based on a history of a consistent (for 3 months or more) delay in the timing of the sleep episode at night, with the complaint of an inability to fall asleep or wake up at conventional times. […] It is indeed important to rule out a DSWPD before confirming a diagnosis of IH. Usually the history will be very different as people with IH do not typically demonstrate delayed bedtimes, and will not wake up refreshed even when given the opportunity to sleep as much as they want, in contrast to DSWPD. A sleep diary (with actigraphy, if available) can be useful to differentiate the 2 conditions.

• #33 German Clinical Trials Register

  https://drks.de/search/en/trial/DRKS00030981

  The goal of this study is to determine whether the internal clock in adolescents and young adults with sleep disorders can be reliably determined from blood or hair samples. […] This is called „delayed-sleep-wake phase disorder” (DSWPD). […] The purpose of this pilot study is to determine whether novel biomarkers can diagnose young adults (up to 25 years of age) with DSWPD, via predictions of circadian phase. […] Aims of the pilot study: – To test biomarkers validated in adults in a specific group of young adults with delayed sleep-wake phase disorder (DSWPD) – To improve the differential diagnosis of sleep onset disorders, specifically regarding DSWPD in young adults by objectively identifying the circadian rhythm. […] Primary hypothesis: the novel biomarkers can identify the subset of individuals with problems falling asleep at usual bedtime whose problem is etiologically related to circadian rhythm disruption.

• #34 What Is Delayed Sleep Phase Syndrome?

  https://www.verywellhealth.com/delayed-sleep-phase-syndrome-overview-4585048

  Delayed sleep phase syndrome (DSPS) occurs in people whose circadian rhythms (cyclical sleep patterns) are set two hours or more later than in most people. […] This article presents information about DSPS causes, symptoms, and diagnosis. […] There are ways to know if you have delayed sleep phase syndrome. Testing is not required to reach a diagnosis. A careful history by a board-certified sleep physician can typically identify the condition. […] In research settings, the measurement of melatonin levels can help to identify the circadian timing. In particular, the dim light melatonin onset (DLMO) measured via blood or saliva can establish the pattern. […] Unfortunately, repeated sampling requires a carefully controlled laboratory environment. This is virtually never done in clinical practice. Currently, researchers are working on blood tests to allow healthcare providers to determine internal circadian time. […] In some cases, sleep logs kept over several weeks may aid the recognition. Rarely is testing with actigraphy (small monitors) needed.

• #35

  https://link.springer.com/article/10.1007/s41105-023-00454-4

  Why the dim light melatonin onset (DLMO) should be measured before treatment of patients with circadian rhythm sleep disorders. […] Evaluation of salivary melatonin measurements for Dim Light Melatonin Onset calculations in patients with possible sleep-wake rhythm disorders. […] The relationship between the dim light melatonin onset and sleep on a regular schedule in young healthy adults. […] Circadian Phase in Delayed Sleep Phase Syndrome: Predictors and Temporal Stability Across Multiple Assessments. […] The use of exogenous melatonin in delayed sleep phase disorder: a meta-analysis. […] Delayed sleep phase syndrome: A placebo-controlled cross-over study on the effects of melatonin administered five hours before the individual dim light melatonin onset. […] Ramelteon for delayed sleep-wake phase disorder: a case report. […] Use of melatonin for sleep and circadian rhythm disorders. […] Practice parameters for the clinical evaluation and treatment of circadian rhythm sleep disorders. […] Resolving delayed sleep-wake phase disorder with a pandemic: two case reports.

• #36 Delayed Sleep Phase Disorder (Delayed Sleep Phase Syndrome) | The Better Sleep Clinic

  https://thebettersleepclinic.com/sleep-disorders/delayed-sleep-phase-disorder

  Self-administered questionnaires can help differentiate DSWPD from other common sleep disorders. Tools include: Horne-stberg Morningness-Eveningness Questionnaire […] It is crucial to distinguish DSWPD from other conditions that may present with similar symptoms as incorrect treatment will not only be ineffective, but can have a significant negative impact. […] A comprehensive approach to assessment that employs a combination of clinical history, objective sleep data, and standardized assessments ensures accurate diagnosis. This in turn supports patients receiving appropriate treatment tailored to their specific needs and challenges. […] DSWPD is typically diagnosed through: Clinical interview and sleep history […] Sleep diary documentation […] Actigraphy (when available) […] Chronotype questionnaires […] Dim Light Melatonin Onset (DLMO) testing (in some cases) […] Polysomnography (not common, only to rule out other sleep disorders).

• #37 Circadian Sleep Disorders Network

  https://www.circadiansleepdisorders.org/

  Circadian Rhythm Sleep Disorders (CRSDs or CRDs) are neurological disorders in which the sleep-wake cycle is out of sync with the day-night cycle. These include in particular Delayed Sleep Phase Disorder and Non-24-Hour Sleep-Wake Disorder. […] Delayed Sleep Phase Disorder (DSPD), also called Delayed Sleep Phase Syndrome (DSPS), is characterized by an inability to fall asleep until very late at night, with the resulting need to sleep late in the morning or into the afternoon. […] CSD-N’s patient survey found that 24% of patients took 10 or more years to receive accurate diagnosis and that 77% were misdiagnosed initially many with multiple incorrect diagnoses over the years. […] Alexandra urged for earlier diagnosis for CRSWDs, asking about best practices for screening patients. For example, she asked the group of clinicians and researchers if it could be possible to routinely administer the Munich Chronotype Questionnaire along with the Epworth Sleepiness Scale at a patient’s initial appointment. […] She also touched on the potential of DNA testing to help diagnose CRSWDs, although it is not yet widely available.

• #38 Circadian Rhythm Sleep-Wake Disorders | Psychology Today

  https://www.psychologytoday.com/us/conditions/circadian-rhythm-sleep-wake-disorders

  Circadian rhythm sleep-wake disorders are a group of conditions in which the timing of an individuals sleep is disrupted. […] The specific types of circadian rhythm sleep-wake disorders, as listed in the Diagnostic and Statistical Manual of Mental Disorders (DSM), include the delayed sleep phase type, the advanced sleep phase type, the irregular sleep-wake type, the non-24-hour sleep-wake type, and the shift-work type. […] A diagnosis of a circadian rhythm sleep-wake disorder is only given if a persons sleep disturbance causes clinically significant distress or impairs their ability to function in social, occupational, or educational settings. […] The delayed sleep phase type is a sleep pattern in which a person falls asleep two or more hours after they intend to. […] Symptoms of this subtype typically begin in adolescence and early adulthood and may continue for months or years before treatment is sought or a diagnosis is made.

• #39 Delayed sleep phase disorder – Wikipedia

  https://en.wikipedia.org/wiki/Delayed_sleep_phase_disorder

  Delayed sleep phase disorder (DSPD), more often known as delayed sleep phase syndrome and also as delayed sleep-wake phase disorder, is the delaying of a person’s circadian rhythm (biological clock) compared to those of societal norms. […] The diagnosis of this disorder is currently a point of contention among specialists of sleep disorders. […] DSPD is frequently misdiagnosed or dismissed. It has been named as one of the sleep disorders most commonly misdiagnosed as a primary psychiatric disorder. […] DSPD is often confused with psychophysiological insomnia; depression; psychiatric disorders such as schizophrenia, ADHD or ADD; other sleep disorders; or school refusal. Practitioners of sleep medicine point out the dismally low rate of accurate diagnosis of the disorder, and have often asked for better physician education on sleep disorders.

• #40 Delayed Sleep Phase Syndrome Symptoms Test: ADHD ComorbidityFooterLogo

  https://www.additudemag.com/delayed-sleep-phase-disorder-test/?srsltid=AfmBOopgzkNKQyfeFDD_I5tkugfzz_wQOcLClpYH_Wy4-wvUPmXYxC_D

  Delayed sleep phase syndrome (DSPS), also known as delayed sleep phase disorder or delayed sleep-wake phase disorder, is a circadian rhythm sleep-wake disorder characterized by an inability to fall asleep and wake up at socially acceptable times. Individuals with DSPS, because of differences in their internal clock, naturally sleep and wake more than two hours later than most people. […] Clinicians use sleep diaries, sleep tests, and actigraphy devices (usually a wrist device that monitors sleep) to diagnose DSPS and rule out other sleep disorders. Treatment for DSPS comprises light exposure therapy, melatonin supplements, and sleep-wake time adjustments.

• #41

• #42 Circadian Rhythm Disorders: Diagnosis and Treatment | Obgyn Key

  https://obgynkey.com/circadian-rhythm-disorders-diagnosis-and-treatment/

  Diagnosis requires that the sleep pattern is significantly delayed, typically by more than one hour. […] Children with DSPD sleep later on weekends and holidays. […] Attention deficit hyperactivity disorder (ADHD), oppositional symptoms, conduct disorder, aggressive symptoms, and symptoms of depression appear frequently in many but not all children with DSPD. […] When psychiatric symptoms and DSPD are present conjointly, it is important to establish if the psychiatric symptoms are present independent of the DSPD or only occur with it. […] The timing of the temperature nadir is established by a careful history of when the child or adolescent prefers to begin sleep and to awaken.

• #43 Delayed Sleep Phase Syndrome (DSPS) | Sleep Health Foundation

  https://www.sleephealthfoundation.org.au/sleep-disorders/delayed-sleep-wake-phase-disorder-dswpd

  If you have Delayed Sleep Phase Syndrome (DSPS), your body wants to go to sleep and wake up later than normal. […] DSPS is a problem with your body clock. […] DSPS, depression and insomnia are linked. […] It is most common in teenagers. About 7% of teenagers have it. […] Because people with DSPS have trouble falling asleep at more usual times at night it is also sometimes mistaken for insomnia. […] If you have DSPS, you have a higher chance of getting depression and insomnia. […] Your GP might see if you can change your sleep and wake times using melatonin at night and light exposure in the morning. They can refer you to a sleep specialist if this doesn’t work. To get an accurate diagnosis you will need to keep a sleep diary. This is where you write down all the details about your sleep timing, every day.

• #44 Delayed sleep phase syndrome in adolescents: prevalence and correlates in a large population based study | BMC Public Health | Full Text

  https://bmcpublichealth.biomedcentral.com/articles/10.1186/1471-2458-13-1163

  The aims of this study were to estimate the prevalence of Delayed Sleep Phase Syndrome (DSPS) in adolescence, and to examine the association to insomnia and school non-attendance. […] DSPS was defined according to the International Classification of Sleep Disorders, Revised (ICSD-R) criteria, while insomnia was defined according to the Quantitative Criteria for Insomnia. […] The prevalence of DSPS was 3.3%, and significantly higher among girls (3.7%) than boys (2.7%). […] There was a strong overlap between DSPS and insomnia, with more than half of the adolescents with DSPS also meeting the criteria for insomnia (53.8% for boys and 57.1% for girls). […] Adolescents with DSPS had significantly higher odds ratios (OR) of non-attendance at school. […] This is one of the first studies to estimate the prevalence of DSPS in adolescents.

• #45 How to treat Delayed Sleep Phase Syndrome — Sleep Cycle

  https://www.sleepcycle.com/sleep-disorders/identifying-and-treating-delayed-sleep-phase-disorder/

  Studies indicate that 50% of DSPS sufferers also experience depression, so ensuring the right problem is identified is a vital first step in any treatment. […] If you think you may have DSPS, we recommend contacting a healthcare professional. After an initial examination and confirmed diagnosis, your doctor may recommend a treatment plan. […] Bright light therapy is a simple but effective method of resetting the bodys circadian rhythm. […] Melatonin supplements can be used to help regulate the sleep-wake cycle and shift the bodys natural sleep pattern. […] Chronotherapy is a time-based therapy that involves gradually applying a new sleep schedule. […] Delayed sleep phase syndrome and insomnia are two distinct conditions, and they cannot be used interchangeably. […] Individuals with DSPS do not intend to stay up late, but their internal clock delays their sleep, making it challenging to fall asleep and wake up at conventional times.

• #46 Delayed sleep-wake phase disorder – Nesbitt – Journal of Thoracic Disease

  https://jtd.amegroups.org/article/view/18434/html

  Criterion E of the ICSD3 diagnostic criteria for DSWPD gives little flexibility to consider the disorder as anything other than a primary, intrinsic sleep disorder. […] Clinical assessment involves eliciting an enduring history of difficulty both falling asleep and waking at socially appropriate times, but otherwise normal sleep when left to sleep ad libitum. […] A multifactorial approach is needed for the treatment of DSWPD, which addresses initial phase advancement (initiation), subsequent phase retention (maintenance), and due consideration of other disorders which may be associated with, or exacerbating, the problem, most notably ADHD, ASD, affective disorders and obsessive compulsive disorder (OCD). […] Large-scale randomised-controlled trials in patient populations are lacking, and therefore little clinical evidence exists to guide best practice management of the disorder.

• #47 Delayed sleep-wake phase disorder – UpToDate

  https://www.uptodate.com/contents/delayed-sleep-wake-phase-disorder

  Delayed sleep-wake phase disorder (DSWPD) is the most commonly encountered circadian rhythm sleep-wake phase disorder in adolescents. […] This topic reviews the clinical features, diagnosis, and management of DSWPD. […] EVALUATION AND DIAGNOSIS includes clinical history, sleep logs and actigraphy, morningness-eveningness questionnaire, other testing, and diagnostic criteria. […] The prevalence of delayed sleep-wake phase disorder (DSWPD) is highest in adolescents and young adults, with rates estimated between 3.3 and 4.6 percent. […] The prevalence of DSWPD in adults is lower, with estimates between 0.2 to 1.7 percent.

• #48 Treating delayed sleep–wake phase disorder in young adults

  https://pmc.ncbi.nlm.nih.gov/articles/PMC5573579/

  A 27-year-old man reports severe insomnia. […] The diagnosis of delayed sleepwake phase disorder (DSWPD) was confirmed with 4 weeks of sleepwake log and actigraphic recordings. […] Delayed sleepwake phase disorder is the most frequent circadian rhythm disorder, with an estimated prevalence of 7%16% in adolescents and 0.13%3.1% in the general adult population. […] The 2015 American Academy of Sleep Medicine (AASM) practice guidelines for the treatment of circadian rhythm sleepwake disorders recommend strategically timed melatonin for the treatment of DSWPD in adults, children and adolescents with or without psychiatric comorbidities, although the available evidence is weak (owing to the low number of high-quality studies). […] The 2015 AASM practice guidelines found insufficient evidence to recommend bright light exposure, light avoidance strategies, or chronotherapy for the treatment of DSWPD. […] In conclusion, DSWPD is a common circadian rhythm disorder affecting mostly adolescents and young adults.

• #49 Delayed Sleep-Wake Phase Disorder | Boston Children’s Hospital

  https://www.childrenshospital.org/conditions/delayed-sleep-wake-phase-disorder

  Delayed sleep-wake phase disorder (DSWPD) is a circadian rhythm disorder that occurs when a child’s natural sleep and wake schedule is shifted later, by at least several hours, and thus conflicts with daily obligations such as school attendance. […] If your child seems to have symptoms suggestive of delayed sleep-wake phase disorder (DSWPD), a sleep specialist can evaluate the problem using the following techniques: Taking a detailed history of your child’s symptoms, including any medical, mental health, or developmental issues. […] If your child or adolescent has been diagnosed with DSWPD, there are several treatment options, depending on the severity of the problem, your child’s general health, and other factors. It requires significant effort and commitment on the part of the child or adolescent. The goal of treatment is to „reset” the internal clock to a more normal schedule that is more compatible with the demands of school or work. […] Specialists at Boston Children’s Hospital’s Sleep Center are experienced in treating children who have DSWPD, so your whole family can get a good night’s sleep.

• #50 How to treat Delayed Sleep Phase Syndrome — Sleep Cycle

  https://www.sleepcycle.com/sleep-disorders/identifying-and-treating-delayed-sleep-phase-disorder/

  People with DSPS may feel isolated from society as the disorder can significantly impact their lifestyle, leading to anxiety about their late sleep schedule. […] We advise seeking professional medical assistance if sleep-related problems are causing health issues or significant disruption to your life. […] Did you know that between 7-16% of adolescents and young adults may experience Delayed Sleep Phase Disorder (DSPD), a condition where falling asleep and waking up align poorly with societal norms? This is the reality for individuals living with Delayed Sleep Phase Disorder (DSPD) […] By understanding DSPD and its treatments, individuals can regain control over their sleep and improve their quality of life.

• #51 Pediatric delayed sleep phase disorder (DSPD) – Children’s Health Sleep Medicine

  https://www.childrens.com/specialties-services/conditions/delayed-sleep-phase-disorder

  Pediatric delayed sleep phase disorder (DSPD) is a delay in the normal sleep-wake nighttime patterns. […] DSPD is an uncontrollable and common sleeping issue in young adults and teenagers. It is sometimes referred to as delayed sleep phase syndrome (DSPS). It causes a shift in the normal sleep patterns by two or more hours (falling asleep at 11 p.m. instead of 9 p.m.) […] The main symptom of DSPD is the time delay that causes adolescents (age 10 to 19) to fall asleep two or more hours later than average teenagers. […] The exact cause of DSPD is unknown. Experts believe it may be linked to an overreaction to typical sleep shifts (natural internal clock changes) that occur after puberty. […] DSPD can be genetic (passed down through generations), which means parents or siblings may also experience DSPD symptoms.

• #52 Circadian Rhythm Disorders: Diagnosis and Treatment | Obgyn Key

  https://obgynkey.com/circadian-rhythm-disorders-diagnosis-and-treatment/

  Normal sleep quantity and sleep quality at an undesirable hour is the hallmark of a circadian rhythm sleep disorder. […] Circadian rhythm disorders are persistent. […] The emergence of a circadian rhythm disorder in a child may result from a genetic polymorphism, as a parent frequently suffers from the same symptoms or propensity. […] Circadian rhythm disorders major consequences are daytime sleepiness, inattention, combativeness, irritability, and hyperactivity. […] DSPD may result in problems with school attendance and school performance. […] Delayed sleep phase disorder alone effects up to 16% of adolescents but may appear in children as early as the start of school. […] A careful history is essential to distinguish circadian rhythm disorders from other sleep disorders. […] In DSPD, the major sleep episode is delayed by one or more hours of the desired bedtime, resulting in significant academic, work, or family issues.

• #53 Delayed sleep-wake phase disorder – UpToDate

  https://www.uptodate.com/contents/delayed-sleep-wake-phase-disorder

  Delayed sleep-wake phase disorder (DSWPD) is the most commonly encountered circadian rhythm sleep-wake phase disorder in adolescents. […] This topic reviews the clinical features, diagnosis, and management of DSWPD. […] EVALUATION AND DIAGNOSIS includes clinical history, sleep logs and actigraphy, morningness-eveningness questionnaire, other testing, and diagnostic criteria. […] The prevalence of delayed sleep-wake phase disorder (DSWPD) is highest in adolescents and young adults, with rates estimated between 3.3 and 4.6 percent. […] The prevalence of DSWPD in adults is lower, with estimates between 0.2 to 1.7 percent.

• #54 Delayed sleep-wake phase disorder – UpToDate

  https://www.uptodate.com/contents/delayed-sleep-wake-phase-disorder/print

  Delayed sleep-wake phase disorder (DSWPD) is the most commonly encountered circadian rhythm sleep-wake phase disorder in adolescents. […] This topic reviews the clinical features, diagnosis, and management of DSWPD. […] The prevalence of delayed sleep-wake phase disorder (DSWPD) is highest in adolescents and young adults, with rates estimated between 3.3 and 4.6 percent. […] The prevalence of DSWPD in adults is lower, with estimates between 0.2 to 1.7 percent.

• #55 Delayed Sleep-Wake Phase Disorder (DSWPD) | 5-Minute Clinical Consult

  https://www.unboundmedicine.com/5minute/view/5-Minute-Clinical-Consult/1688638/all/Delayed_Sleep_Wake_Phase_Disorder__DSWPD_?q=Fatigue

  Delayed sleep-wake phase disorder (DSWPD) is marked by a stable but persistent inability to initiate sleep at a desired time. Individuals are typically unable to initiate sleep until 2 to 6 hours later than societal norms (typically they initiate sleep after 2 AM), and this frequently results in insufficient sleep/sleepiness in the day that follows. […] DSWPD is the most common circadian rhythm disorder seen by referral in sleep medicine clinics. […] DSWPD has an estimated prevalence of 0.10.2% in the general population. It is most common in adolescents, with a prevalence of 716%. […] DSWPD occurs when the endogenous circadian rhythm is not adequately synchronized to the shorter 24-hour environmental cycle, creating a mismatch between them. […] DSWPD is the result of biologic, behavioral, and psychosocial factors. The relative contributions of genetically predetermined endogenous factors (the shifting of the circadian phase just described) versus voluntary behaviors that delay bedtime are not fully delineated.

• #56 Delayed Sleep-Wake Phase Disorder (DSWPD) | 5-Minute Clinical Consult

  https://www.unboundmedicine.com/5minute/view/5-Minute-Clinical-Consult/1688638/all/Delayed_Sleep_Wake_Phase_Disorder__DSWPD_?q=Fatigue

  Emerging evidence indicates a genetic component to DSWPD; a positive family history is reported in approximately 40% of individuals. […] DSWPD primarily affects adolescents and young adults—a cohort who have a biologic tendency to delay the onset of sleep yet often need to be up early for school/work responsibilities. […] In DSWPD (and all CRSDs), careful attention to sleep hygiene is necessary to establish and maintain a desired sleep schedule.

• #57 Delayed sleep phase disorder – Wikipedia

  https://en.wikipedia.org/wiki/Delayed_sleep_phase_disorder

  Delayed sleep phase disorder (DSPD), more often known as delayed sleep phase syndrome and also as delayed sleep-wake phase disorder, is the delaying of a person’s circadian rhythm (biological clock) compared to those of societal norms. […] The diagnosis of this disorder is currently a point of contention among specialists of sleep disorders. […] DSPD is frequently misdiagnosed or dismissed. It has been named as one of the sleep disorders most commonly misdiagnosed as a primary psychiatric disorder. […] DSPD is often confused with psychophysiological insomnia; depression; psychiatric disorders such as schizophrenia, ADHD or ADD; other sleep disorders; or school refusal. Practitioners of sleep medicine point out the dismally low rate of accurate diagnosis of the disorder, and have often asked for better physician education on sleep disorders.

• #58 Delayed_sleep_phase_syndrome

  https://www.bionity.com/en/encyclopedia/Delayed_sleep_phase_syndrome.html

  DSPS is diagnosed by a clinical interview, actigraphic monitoring and/or a sleep log kept by the patient for at least three weeks. […] DSPS is frequently misdiagnosed or dismissed. It has been named as one of the sleep disorders most commonly misdiagnosed as a primary psychiatric disorder. […] Practitioners of sleep medicine point out the dismally low rate of accurate diagnosis of the disorder, and have often asked for better physician education on sleep disorders.

• #59 Circadian Sleep Disorders Network

  https://www.circadiansleepdisorders.org/

  Circadian Rhythm Sleep Disorders (CRSDs or CRDs) are neurological disorders in which the sleep-wake cycle is out of sync with the day-night cycle. These include in particular Delayed Sleep Phase Disorder and Non-24-Hour Sleep-Wake Disorder. […] Delayed Sleep Phase Disorder (DSPD), also called Delayed Sleep Phase Syndrome (DSPS), is characterized by an inability to fall asleep until very late at night, with the resulting need to sleep late in the morning or into the afternoon. […] CSD-N’s patient survey found that 24% of patients took 10 or more years to receive accurate diagnosis and that 77% were misdiagnosed initially many with multiple incorrect diagnoses over the years. […] Alexandra urged for earlier diagnosis for CRSWDs, asking about best practices for screening patients. For example, she asked the group of clinicians and researchers if it could be possible to routinely administer the Munich Chronotype Questionnaire along with the Epworth Sleepiness Scale at a patient’s initial appointment. […] She also touched on the potential of DNA testing to help diagnose CRSWDs, although it is not yet widely available.

• #60 Delayed Sleep Phase Disorder (DSPD): Symptoms and Treatment – Mindtalk

  https://www.mindtalk.in/blogs/understanding-delayed-sleep-phase-disorder-dsps

  If your sleep pattern substantially affects your daily life, for instance, causing difficulty maintaining work or school schedules, chronic fatigue, or mental health concerns, the time has come to seek a doctor’s visit. Early diagnosis and treatment are essential for the effective management of delayed sleep phase disorder without such long-term health complications.

• #61 What Is Delayed Sleep Phase Disorder? – Jacksonville Sleep Center

  https://jaxsleepcenter.com/delayed-sleep-phase-disorder/

  Delayed Sleep Phase Disorder (DSPS) is a disorder of the circadian rhythm. With this chronic sleep disorder a person’s internal body clock is delayed in regard to the natural fall sleep at night/wake in the morning cycle. […] If you think you may have DSPS, contact a sleep doctor in Jacksonville who can help you find ways to manage your symptoms and get a better night’s sleep. […] That’s why seeing a sleep doctor in Jacksonville for accurate diagnosis is important. […] Seeking treatment from a sleep doctor in Jacksonville is important to avoid the negative effects of this disorder. […] Don’t put off seeing a sleep specialist if you’re suffering from a sleep disorder like DSPD. With proper diagnosis, sleep disorders can be treated and managed to improve your quality of life.

• #62 What Is Delayed Sleep Phase Syndrome? – Sleep Care Online

  https://www.sleepcareonline.com/articles/what-is-delayed-sleep-phase-syndrome/?srsltid=AfmBOopbIqx9ynCNEoCKLhD2ni8dGUUwKQx-A4cT5qMYDFpSKvjYvCuJ

  One common sleep disorder is delayed sleep phase syndrome (DSPS). This condition prevents people from falling asleep at their normal bedtime. […] Diagnosing sleep apnea first may be a step toward resolving DSPS. Home sleep apnea tests are one way someone suffering from sleep issues can find a solution. […] Not being able to follow a consistent sleep schedule can impact overall health. […] Diagnosis through at-home sleep testing helps rule out sleep apnea so you can pursue proper treatment. […] Speak to your doctor about any sleep problems and about getting a diagnosis and treatment. Sleep specialists can help designate the type of sleep disorder you have and possible connections with other types of sleep disorders. They may also determine if sleep apnea is playing a role in your DSPS. […] If you experience what appears to be DSPS, it’s important to make sure you have a proper diagnosis. Use an at-home sleep apnea test to clarify that sleep apnea is not affecting your healthy sleep.

• #63 Delayed Sleep Phase Disorder (Delayed Sleep Phase Syndrome) | The Better Sleep Clinic

  https://thebettersleepclinic.com/sleep-disorders/delayed-sleep-phase-disorder

  Self-administered questionnaires can help differentiate DSWPD from other common sleep disorders. Tools include: Horne-stberg Morningness-Eveningness Questionnaire […] It is crucial to distinguish DSWPD from other conditions that may present with similar symptoms as incorrect treatment will not only be ineffective, but can have a significant negative impact. […] A comprehensive approach to assessment that employs a combination of clinical history, objective sleep data, and standardized assessments ensures accurate diagnosis. This in turn supports patients receiving appropriate treatment tailored to their specific needs and challenges. […] DSWPD is typically diagnosed through: Clinical interview and sleep history […] Sleep diary documentation […] Actigraphy (when available) […] Chronotype questionnaires […] Dim Light Melatonin Onset (DLMO) testing (in some cases) […] Polysomnography (not common, only to rule out other sleep disorders).

• #64 Delayed Sleep-Wake Phase Disorder (DSWPD): Causes, Symptoms, Diagnosis, and Treatment – DoveMed

  https://prod.cluster.dovemed.com/health-topics/focused-health-topics/delayed-sleep-wake-phase-disorder-dswpd-causes-symptoms-diagnosis-and-treatment

  Diagnosing DSWPD involves several steps, including: […] Clinical evaluation: A healthcare provider will assess the patient’s sleep history and symptoms. […] Sleep diary: Keeping a detailed sleep diary to document sleep patterns and timing. […] Actigraphy: Wearing a wristwatch-like device to monitor sleep-wake patterns over an extended period. […] Polysomnography: In some cases, a sleep study may be conducted to rule out other sleep disorders.

• #65 Delayed Sleep Phase Syndrome: Things to Know

  https://careclinic.io/delayed-sleep-phase-syndrome/

  Delayed Sleep Phase Syndrome (DSPS) is a sleep disorder that affects the timing of sleep and wakefulness. […] The diagnostic process typically consists of several steps to ensure an accurate assessment and rule out other potential sleep disorders. […] In the initial evaluation, a healthcare professional gathers medical history and performs a physical examination to identify underlying conditions causing sleep disturbances. […] Sleep logs and diaries play a crucial role in evaluating sleep patterns and identifying potential sleep-wake disruptions. […] By conducting a sleep study, the healthcare professional can gather objective data on the patients sleep architecture and circadian rhythm, which can further support the diagnosis of Delayed Sleep Phase Syndrome.

• #66 Azthena logo with the word Azthena

  https://www.news-medical.net/health/Delayed-Sleep-Phase-Disorder-(DSPD)-Management.aspx

  Delayed sleep phase disorder (DSPD) is a circadian rhythm sleep disorder that is characterized by a sleep-wake cycle that is later than what is considered to be normal. […] In general, if a patient reports unfavorable symptoms that they would like to improve, appropriate management techniques are indicated. […] The initial step in the management of DSPD is to improve sleep habits with non-invasive techniques and align the sleep-wake cycle more closely with what is considered to be normal. […] Advancing the sleep-wake cycle can be assisted by light or dark therapy. […] Chronotherapy is a technique used to reset the clock by delaying the sleep-wake cycle significantly, such that becomes aligned with the normal sleep time. […] Finally, there are some pharmacological options that may help to aid sleep in patients with severe symptoms.

• #67 Delayed Sleep Phase Syndrome (DSPS): Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/14295-delayed-sleep-phase-syndrome-dsps

  Delayed sleep phase syndrome doesn’t go away. Treatment is ongoing to manage it. […] There’s no cure for delayed sleep phase syndrome (DSPS). Treatment is effective at improving your sleep to reduce your symptoms. […] If you have a delayed sleep phase syndrome diagnosis and the changes to your sleep routine aren’t helping your symptoms, let your healthcare provider know so they can help you make adjustments to your treatment plan.

• #68 Delayed Sleep Phase Syndrome (DSPS): Symptoms & Treatment

  https://my.clevelandclinic.org/health/diseases/14295-delayed-sleep-phase-syndrome-dsps

  Delayed sleep phase syndrome doesn’t go away. Treatment is ongoing to manage it. […] There’s no cure for delayed sleep phase syndrome (DSPS). Treatment is effective at improving your sleep to reduce your symptoms. […] If you have a delayed sleep phase syndrome diagnosis and the changes to your sleep routine aren’t helping your symptoms, let your healthcare provider know so they can help you make adjustments to your treatment plan.

• #69 Delayed sleep-wake phase disorder – Nesbitt – Journal of Thoracic Disease

  https://jtd.amegroups.org/article/view/18434/html

  While Melatonin is the traditional mainstay, and perhaps best described, treatment for DSWPD, its use is seldom systematically prescribed or adhered to. […] A further mechanism contributing to the development of DSWPD is likely to be intrinsic differences in sleep homeostasis in individuals who develop the disorder. […] Delayed sleep wake phase disorder is a relatively common sleep disorder with clear associations and tangible likely pathophysiological mechanisms.

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