In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
The human brain is more active during sleep than during the day.
28
Bats sleep 18-20 hours per day.
5
44% of kids watch television before they go to sleep.
106
You burn more calories sleeping than you do watching television.
348
You forget 90% of your dreams.
256
Honeybees never sleep.
276