A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
"Dysania" is the state of finding it hard getting up out of bed in the morning.
33
Honeybees never sleep.
276
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Those who get out of bed by 7am are more likely to be thinner and happier.
20
The average cat sleeps about 2/3 of the day.
203