Those who get out of bed by 7am are more likely to be thinner and happier.
20
In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
Dieters who sleep more take off more fat that those who sleep less.
159
44% of kids watch television before they go to sleep.
106
Termites work 24 hours per day and they do not sleep.
57
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15