The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
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The higher someone’s I.Q. the more likely they are to be sleep deprived.
29
You forget 90% of your dreams.
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Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
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The human brain is more active during sleep than during the day.
28
Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
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