The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
Cows can sleep standing up, but they can only dream lying down.
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Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28
You forget 90% of your dreams.
256
Termites work 24 hours per day and they do not sleep.
57
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
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