The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
Honeybees never sleep.
276
The average cat sleeps about 2/3 of the day.
203
You burn more calories sleeping than you do watching television.
348
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
If you hold farts in during the day, they'll just come out when you sleep.
16
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212