Hallucinations

Some individuals with narcolepsy may experience hallucinations that may occur at the beginning or at the end of a sleep period. These are often vivid and frightening. Examples of hallucinations may include hearing a phone ring or a person walking nearby, seeing people or animals that aren’t there, or having …

Cataplexy

Many individuals with narcolepsy experience weakness and the sudden loss of voluntary muscle tone (cataplexy). This often occurs during times of intense emotions such as laughter, anger, elation, and/or surprise. Episodes of cataplexy may occur as short periods of partial muscle weakness and can vary in duration and severity. In …

Excessive daytime sleepiness

Excessive daytime sleepiness (EDS) is usually the first symptom of narcolepsy. People with narcolepsy typically experience periods of drowsiness, tiredness, lack of energy, an irresistible urge to sleep (“sleep attack”), and/or an inability to resist sleep. This susceptibility to unending drowsiness and/or falling asleep may occur every day but the …