The human brain is more active during sleep than during the day.
28
Honeybees never sleep.
276
You burn more calories sleeping than you do watching television.
348
The strangers in your dreams are actually people that you've seen in real life.
50
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
The average person falls asleep in seven minutes.
115
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22