The average person falls asleep in seven minutes.
115
Honeybees never sleep.
276
Lack of water is the #1 trigger of daytime fatigue.
148
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
The human brain is more active during sleep than during the day.
28
The average cat sleeps about 2/3 of the day.
203
Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23