The human brain is more active during sleep than during the day.
28
Dieters who sleep more take off more fat that those who sleep less.
159
"Dysania" is the state of finding it hard getting up out of bed in the morning.
33
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
47% of people have a nightmare at least once a month.
186
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 average cat sleeps about 2/3 of the day.
203