A new baby usually deprives each of it's parents around 350-400 hours of sleep in the first year. That is one entire nights sleep per week, per parent.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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Cows can sleep standing up, but they can only dream lying down.
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Those who get out of bed by 7am are more likely to be thinner and happier.
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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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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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The average cat sleeps about 2/3 of the day.
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