Bill is usually very sleepy during the day and several times each week he falls asleep at work. A sleep clinic recently said he was suffering from

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Narcolepsy is a disorder characterized by excessive daytime sleepiness and sudden attacks of sleep. Falling asleep frequently during the day is a common symptom of narcolepsy. Insomnia is the difficulty in falling or staying asleep at night, somnambulism is sleepwalking, and cataplexy is sudden loss of muscle tone often triggered by strong emotions.

Bill Is Usually Very Sleepy During the Day and Several