Dieters who sleep more take off more fat that those who sleep less.
159
Bats sleep 18-20 hours per day.
5
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
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
The average cat sleeps about 2/3 of the day.
203