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Clinical features

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

The clinical features of narcolepsy include:

  • excessive daytime sleepiness:
    • many patients feel sleepy most of the time
    • episodically sleep becomes irresistible
    • after a nap of 10-15 min the patient feels refreshed

  • cataplexy:
    • 60-90% of patients

  • hypnagogic and hypnapompic hallucinations:
    • 30-60% of patients

  • sleep paralysis:
    • 30-60% of patients

The patient my present at any age from childhood to the sixth decade. The peak incidence is between 10 and 20 years. Often patients complain that a change in sleep pattern triggered the disorder.

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