Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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A new parent will lose about 1055.6 hours of sleep in the first year of their child's life - almost 44 days!
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Dieters who sleep more take off more fat that those who sleep less.
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Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
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There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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The higher someone’s I.Q. the more likely they are to be sleep deprived.
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