47% of people have a nightmare at least once a month.
186
People who sleep late have more mental stamina and can outperform early risers.
33
The strangers in your dreams are actually people that you've seen in real life.
50
44% of kids watch television before they go to sleep.
106
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
Cows can sleep standing up, but they can only dream lying down.
745