There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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Honeybees never sleep.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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The average cat sleeps about 2/3 of the day.
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47% of people have a nightmare at least once a month.
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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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Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
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