Honeybees never sleep.
276
People who sleep late have more mental stamina and can outperform early risers.
33
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
You burn more calories sleeping than you do watching television.
348
You forget 90% of your dreams.
256
If you hold farts in during the day, they'll just come out when you sleep.
16