Honeybees never sleep.
276
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
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
You burn more calories sleeping than you do watching television.
348
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
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
44% of kids watch television before they go to sleep.
106
People who sleep late have more mental stamina and can outperform early risers.
33