If you hold farts in during the day, they'll just come out when you sleep.
16
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
Bats sleep 18-20 hours per day.
5
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
A new parent will lose about 1055.6 hours of sleep in the first year of their child's life - almost 44 days!
6
Termites work 24 hours per day and they do not sleep.
57