There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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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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Sea otters hold hands while sleeping so they don’t drift away from each other.
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Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
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People who sleep late have more mental stamina and can outperform early risers.
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The higher someone’s I.Q. the more likely they are to be sleep deprived.
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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.
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