The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
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Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
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Cows can sleep standing up, but they can only dream lying down.
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44% of kids watch television before they go to sleep.
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People who sleep late have more mental stamina and can outperform early risers.
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