Bats sleep 18-20 hours per day.
5
Those who get out of bed by 7am are more likely to be thinner and happier.
20
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 record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
44% of kids watch television before they go to sleep.
106