Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
The strangers in your dreams are actually people that you've seen in real life.
50
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Sleeping on the job is acceptable in Japan. It is viewed as exhaustion from working hard. Some people fake it to look committed to their job.
57
People who sleep late have more mental stamina and can outperform early risers.
33
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
44% of kids watch television before they go to sleep.
106
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28