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 average cat sleeps about 2/3 of the day.
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The average person falls asleep in seven minutes.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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Termites work 24 hours per day and they do not sleep.
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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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47% of people have a nightmare at least once a month.
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