Print DiagnosisTo diagnose your condition, your doctor may review your family and medical history and conduct a physical examination. Your doctor may order several tests to diagnose your condition or any other related conditions, such as: Actigraphy. In this test, you wear a small device that tracks your sleep-wake behavior at home. Sleep diary. Your doctor may ask you to keep a sleep diary in which you log your daily sleep and wake times to help show your sleep pattern. Polysomnogram. If your doctor suspects that you have a different sleep disorder, he or she may order a polysomnogram. In this test, you stay in a sleep center overnight. A polysomnogram monitors your brain activity, heart rate, oxygen levels, eye movements and breathing function as you sleep. Care at Mayo Clinic Our caring team of Mayo Clinic experts can help you with your delayed sleep phase-related health concerns Start Here TreatmentYour doctor will work with you to create a plan for you to treat your condition. Your plan may include: Improving sleep habits. Your doctor may call this sleep hygiene. Good sleep hygiene involves maintaining a regular sleep schedule, avoiding caffeine and stimulating activities near bedtime, avoiding tobacco and alcohol, and only using your bedroom for sleeping and sex. It's also helpful to exercise in the morning and avoid moderate to vigorous exercise close to bedtime. Melatonin supplements. Doctors may prescribe a melatonin supplement to take in the early evening, to help adjust your circadian rhythm. Light therapy. Having light exposure in the morning may adjust your internal sleep clock (circadian rhythm). Chronotherapy. In chronotherapy, doctors may prescribe you a sleep schedule that delays your bedtime by 1 to 2.5 hours every six days, until the desired bedtime is reached. You should maintain your sleep schedule once it is established. By Mayo Clinic Staff Delayed sleep phase care at Mayo Clinic Request an appointment Symptoms & causesDoctors & departments Feb. 18, 2022 Print Share on: FacebookTwitter Show references Auger RR. Delayed sleep-wake phase disorder. https://www.uptodate.com/contents/search. Accessed Nov. 9, 2021. AskMayoExpert. Circadian rhythm sleep disorders. Mayo Clinic; 2020. Feldman MD, et al., eds. Sleep disorders. In: Behavioral Medicine: A Guide for Clinical Practice. 5th ed. McGraw-Hill; 2019. http://accessmedicine.mhmedical.com. Accessed Nov. 9, 2021. Jameson JL, et al., eds. Sleep disorders. In: Harrison's Principles of Internal Medicine. 20th ed. McGraw Hill; 2018. http://accessmedicine.mhmedical.com. Accessed Nov. 9, 2021. Richardson CE, et al. Can exercise regulate the circadian system of adolescents? Novel implications for the treatment of delayed sleep-wake phase disorder. Sleep Medicine. 2017; doi:10.1212/CON.0000000000000499. Braswell Pickering EA. Allscripts EPSi. Mayo Clinic. Nov. 11, 2021. Pavlova M. Circadian rhythm sleep-wake disorders. Continuum. 2017; doi:10.1212/CON.0000000000000499. Related Products & Services Book: Mayo Clinic Family Health Book, 5th Edition Newsletter: Mayo Clinic Health Letter — Digital Edition Show more products and services from Mayo Clinic Delayed sleep phaseSymptoms & causesDiagnosis & treatmentDoctors & departmentsCare at Mayo Clinic Advertisement Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission. Advertising & Sponsorship Policy Opportunities Ad Choices Mayo Clinic Press Check out these best-sellers and special offers on books and newsletters from Mayo Clinic Press. Mayo Clinic on Incontinence - Mayo Clinic PressMayo Clinic on IncontinenceNEW – Future Care - Mayo Clinic PressNEW – Future CareMayo Clinic on Hearing and Balance - Mayo Clinic PressMayo Clinic on Hearing and BalanceFREE Mayo Clinic Diet Assessment - Mayo Clinic PressFREE Mayo Clinic Diet AssessmentMayo Clinic Health Letter - FREE book - Mayo Clinic PressMayo Clinic Health Letter - FREE book CON-20313606 Patient Care & Health Information Diseases & Conditions Delayed sleep phase