Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
The human brain is more active during sleep than during the day.
28
You burn more calories sleeping than you do watching television.
348
In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
Those who get out of bed by 7am are more likely to be thinner and happier.
20
The strangers in your dreams are actually people that you've seen in real life.
50
A new baby usually deprives each of it's parents around 350-400 hours of sleep in the first year. That is one entire nights sleep per week, per parent.
194