Termites work 24 hours per day and they do not sleep.
57
You forget 90% of your dreams.
256
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
The human brain is more active during sleep than during the day.
28
The strangers in your dreams are actually people that you've seen in real life.
50