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Published on: 7/14/2026
Excessive daytime sleepiness disorder is when someone feels very sleepy during the day, even after a good night's sleep. It can be treated with lifestyle changes and sometimes medication.
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Submit your own QuestionExcessive daytime sleepiness disorder is a condition where a person feels very tired during the day, even if they have had enough sleep at night. This can make it hard to pay attention, learn, and do daily activities.
Causes:
Treatment:
If you're experiencing persistent daytime sleepiness, you can check your symptoms with our free AI-powered tool to help identify potential causes and determine if you should see a doctor for further evaluation and treatment.
(References)
Gandhi KD, Mansukhani MP, Silber MH, & Kolla BP. (2021). Excessive Daytime Sleepiness: A Clinical Review. Mayo Clinic proceedings, 33840518.
Pérez-Carbonell L, Mignot E, Leschziner G, & Dauvilliers Y. (2022). Understanding and approaching excessive daytime .... Lancet (London, England), 36115367.
Takenoshita S, & Nishino S. (2017). Pharmacologic Management of Excessive Daytime .... Sleep medicine clinics, 28778242.
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