There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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You burn more calories sleeping than you do watching television.
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In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
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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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The average cat sleeps about 2/3 of the day.
203
Sea otters hold hands while sleeping so they don’t drift away from each other.
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Those who get out of bed by 7am are more likely to be thinner and happier.
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