The strangers in your dreams are actually people that you've seen in real life.
50
Honeybees never sleep.
276
Dieters who sleep more take off more fat that those who sleep less.
159
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
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
You burn more calories sleeping than you do watching television.
348
The average cat sleeps about 2/3 of the day.
203
44% of kids watch television before they go to sleep.
106