Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
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47% of people have a nightmare at least once a month.
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Sleeping on the job is acceptable in Japan. It is viewed as exhaustion from working hard. Some people fake it to look committed to their job.
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Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
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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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Cows can sleep standing up, but they can only dream lying down.
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You can reschedule your sleeping pattern by not eating 12-16 hours before you want to be awake. Upon eating after this time period, your internal clock will reset to a new day, with the time of your first meal being interpreted as "morning".
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