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Criterion A

• Self-reported excessive sleepiness occurs despite a main sleep period lasting at least 7 hours.
• The excessive sleepiness is accompanied by recurrent periods of sleep or lapses into sleep within the same day, a main sleep episode lasting more than 9 hours that is not restorative, or difficulty being fully awake after abrupt awakening.

Criterion B

• The hypersomnolence occurs at least 3 times per week for at least 3 months.

Criterion C

• The hypersomnolence causes significant distress or impairment.

Criterion D

• The hypersomnolence is not better explained by another sleep disorder and does not occur exclusively during the course of another sleep disorder.

Criterion E

• The hypersomnolence is not attributable to a substance or medication.

Criterion F

• Coexisting mental or medical disorders do not adequately explain the predominant hypersomnolence complaint.

Related Guides

• Hypersomnolence Disorder Symptoms and Signs
• Hypersomnolence Disorder Scales and Assessment Tools
• Hypersomnolence Disorder Treatments and Medications
• When to Seek Professional Help for Hypersomnolence Disorder