Sea otters hold hands while sleeping so they don’t drift away from each other.
104
You can reschedule your sleeping pattern by not eating 12-16 hours before you want to be awake. Upon eating after this time period, your internal clock will reset to a new day, with the time of your first meal being interpreted as "morning".
11
People who sleep late have more mental stamina and can outperform early risers.
33
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
Dieters who sleep more take off more fat that those who sleep less.
159
Cows can sleep standing up, but they can only dream lying down.
745