Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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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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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.
15
Those who get out of bed by 7am are more likely to be thinner and happier.
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