Bats sleep 18-20 hours per day.
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47% of people have a nightmare at least once a month.
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One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
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44% of kids watch television before they go to sleep.
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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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Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
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You forget 90% of your dreams.
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