Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
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Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15
The human brain is more active during sleep than during the day.
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The average cat sleeps about 2/3 of the day.
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44% of kids watch television before they go to sleep.
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A new baby usually deprives each of it's parents around 350-400 hours of sleep in the first year. That is one entire nights sleep per week, per parent.
194
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
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