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 harder you concentrate on falling asleep, the less likely you are to fall asleep.
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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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Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
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You forget 90% of your dreams.
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47% of people have a nightmare at least once a month.
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