Dieters who sleep more take off more fat that those who sleep less.
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47% of people have a nightmare at least once a month.
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The harder you concentrate on falling asleep, the less likely you are to fall asleep.
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A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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Termites work 24 hours per day and they do not sleep.
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You can reschedule your sleeping pattern by not eating 12-16 hours before you want to be awake. Upon eating after this time period, your internal clock will reset to a new day, with the time of your first meal being interpreted as "morning".
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The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
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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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