In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
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The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
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Bats sleep 18-20 hours per day.
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Lack of water is the #1 trigger of daytime fatigue.
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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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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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44% of kids watch television before they go to sleep.
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