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Delayed sleep phase

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Overview

Delayed sleep phase, also known as delayed sleep-wake phase sleep disorder, is an internal sleep clock (circadian rhythm) sleep disorder. It occurs when your sleep pattern is delayed two hours or more from a conventional sleep pattern, causing you to go to sleep later and wake up later.

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By Mayo Clinic Staff

Delayed sleep phase care at Mayo Clinic

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Diagnosis & treatment
Feb. 18, 2022
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  1. Auger RR. Delayed sleep-wake phase disorder. https://www.uptodate.com/contents/search. Accessed Nov. 9, 2021.
  2. AskMayoExpert. Circadian rhythm sleep disorders. Mayo Clinic; 2020.
  3. 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.
  4. 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.
  5. 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.
  6. Braswell Pickering EA. Allscripts EPSi. Mayo Clinic. Nov. 11, 2021.
  7. Pavlova M. Circadian rhythm sleep-wake disorders. Continuum. 2017; doi:10.1212/CON.0000000000000499.

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