Although not common, the short sleep gene allows the lucky few to enjoy 5 hours of sleep or less a night and still wake up ...

Lucid dreaming is so yesterday. Now, sleep scientists are focusing on a rare phenomenon in which people remain aware while sleeping — but experience no dreams, thoughts or even a sense of self.

Narcolepsy type 1 is a chronic, rare neurological disease caused by the loss of orexin neurons in the brain. Orexin is a ...