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Clinical overview

• Hypersomnolence disorder is about excessive sleepiness that persists even when the person appears to be getting enough main sleep. Patients often describe long, unrefreshing sleep, trouble getting fully awake, or repeated daytime sleep episodes that interfere with work, school, or safety.
• Not just tired: This diagnosis is about true sleepiness rather than low energy alone, so it helps to separate sleepiness from depression, burnout, and medication side effects.
• Duration: The problem needs to be recurrent and persistent, not just a short period of catch-up sleep after deprivation.
• Rule-outs: Sleep deprivation, sleep apnea, circadian disruption, substance effects, and narcolepsy all need to be considered carefully before landing here.

Related Guides

• Hypersomnolence Disorder DSM Criteria Guide
• Hypersomnolence Disorder Scales and Assessment Tools
• Hypersomnolence Disorder Treatments and Medications
• When to Seek Professional Help for Hypersomnolence Disorder