Narcolepsy refers to a sudden, irresistible, daytime sleep attacks that may last anywhere from a few minutes to a half hour.

Victims may fall asleep while standing, talking, or even driving. It is a disorder that consists of irresistible daytime "sleep attacks" a central nervous system disorder of the region of the brainstem that controls and regulates sleep and wakefulness. The primary symptom of this disorder is excessive daytime sleepiness. Narcolepsy, moreover, is a a sleep disorder in which the patient has an irresistible need to sleep during the day. A patient may also experience Cataplexy sleep paralysis, Hypnagogic hallucinations, and or sleep working.