One reason that kittens sleep so much is because a growth hormone is released only during sleep.
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The strangers in your dreams are actually people that you've seen in real life.
50
Bats sleep 18-20 hours per day.
5
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Termites work 24 hours per day and they do not sleep.
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The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
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