There's a love mattress that is specifically designed for couples who sleep on each other's arms.
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The average person falls asleep in seven minutes.
115
Lack of water is the #1 trigger of daytime fatigue.
148
47% of people have a nightmare at least once a month.
186
Honeybees never sleep.
276
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
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The human brain is more active during sleep than during the day.
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People who sleep late have more mental stamina and can outperform early risers.
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