Another symptom of narcolepsy is sleep paralysis, a condition defined by an inability to move or speak despite complete consciousness. A third symptom of narcolepsy involves hypnologic hallucinations, strange dreamlike episodes that are characterized by a lack of physical control and a nightmarish sensation that a prowler or strange animal is present. These “waking dreams” are especially disturbing because they are often mistaken for mental illness.

Restless leg Syndrome:

People experience restless legs syndrome in many ways, but it is almost always described as an uncomfortable sensation in the legs when sitting or lying still. The pain is usually felt in the calves and sometimes can be temporarily relieved by stretching. The constant need to stretch, however, often leaves the sufferer unable to fall asleep.

A similar disorder can be problematic as well. Periodic limb movement disorder is caused by involuntary movements of the legs and arms. These movements tend to occur when asleep. Many of those who suffer from the disorder are unaware of the movements. Episodes occur at regular intervals, usually every 30 seconds during the beginning phases of sleep. Although it is rare, those who suffer this disorder can be awakened by their involuntary movements, leading to a sensation of excessive drowsiness during waking hours.

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