You forget 90% of your dreams.
256
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
The strangers in your dreams are actually people that you've seen in real life.
50
44% of kids watch television before they go to sleep.
106
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149