One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
You forget 90% of your dreams.
256
You burn more calories sleeping than you do watching television.
348
If you hold farts in during the day, they'll just come out when you sleep.
16
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149