Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
47% of people have a nightmare at least once a month.
186
You burn more calories sleeping than you do watching television.
348
Dieters who sleep more take off more fat that those who sleep less.
159
Those who get out of bed by 7am are more likely to be thinner and happier.
20
44% of kids watch television before they go to sleep.
106
The human brain is more active during sleep than during the day.
28
Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15