AskMen.com: Sleep Disorders

A snoring man can reach 85 decibels, making as much racket as a vacuum cleaner or a blender mashing margaritas. Sleepwalkers have been known to cook and eat full meals and even have sex during sleep. Narcoleptics can nod off at any time — during conversations, meals and while operating heavy machinery. Fatal Familial Insomnia, a rare brain-wasting disease, throws people into a fit of wakefulness that eventually kills them.

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AskMen.com: Sleep Disorders