There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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The harder you concentrate on falling asleep, the less likely you are to fall asleep.
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44% of kids watch television before they go to sleep.
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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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Bats sleep 18-20 hours per day.
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Sea otters hold hands while sleeping so they don’t drift away from each other.
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"Dysania" is the state of finding it hard getting up out of bed in the morning.
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