There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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47% of people have a nightmare at least once a month.
186
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
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The average cat sleeps about 2/3 of the day.
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Those who get out of bed by 7am are more likely to be thinner and happier.
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The strangers in your dreams are actually people that you've seen in real life.
50
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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