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 human brain is more active during sleep than during the day.
28
47% of people have a nightmare at least once a month.
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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 person falls asleep in seven minutes.
115
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
You burn more calories sleeping than you do watching television.
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