Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
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44% of kids watch television before they go to sleep.
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The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
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The strangers in your dreams are actually people that you've seen in real life.
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Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
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Those who get out of bed by 7am are more likely to be thinner and happier.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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