People who sleep late have more mental stamina and can outperform early risers.
33
The human brain is more active during sleep than during the day.
28
In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
The average person falls asleep in seven minutes.
115
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
Cows can sleep standing up, but they can only dream lying down.
745
Those who get out of bed by 7am are more likely to be thinner and happier.
20