In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
Lack of water is the #1 trigger of daytime fatigue.
148
Those who get out of bed by 7am are more likely to be thinner and happier.
20
The higher someone’s I.Q. the more likely they are to be sleep deprived.
29