A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
Those who get out of bed by 7am are more likely to be thinner and happier.
20
Lack of water is the #1 trigger of daytime fatigue.
148
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
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
"Dysania" is the state of finding it hard getting up out of bed in the morning.
33
The average cat sleeps about 2/3 of the day.
203
Bats sleep 18-20 hours per day.
5