In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28
Sleeping on the job is acceptable in Japan. It is viewed as exhaustion from working hard. Some people fake it to look committed to their job.
57
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
People who sleep late have more mental stamina and can outperform early risers.
33
You forget 90% of your dreams.
256
