Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
A new baby usually deprives each of it's parents around 350-400 hours of sleep in the first year. That is one entire nights sleep per week, per parent.
194
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
The strangers in your dreams are actually people that you've seen in real life.
50
Dieters who sleep more take off more fat that those who sleep less.
159