Narcolepsy is a malfunction of the sleep/wake regulating
system in the brain which until recently was of unknown
origin. Its most common manifestation is Excessive Daytime
Sleepiness and sleep attacks.Symptoms of Narcolepsy includes:a. Temporary paralysis on falling asleep or awakening (sleep
paralysis).b. Hallucinations - vivid images or sounds - on falling
asleep or awakening (Hypnagogic and hypnopompic
hallucinations respectively).c. Moments (but sometimes extended periods) of trance-like
beh.