Sea otters hold hands while sleeping so they don’t drift away from each other.
104
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
The human brain is more active during sleep than during the day.
28
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
The average cat sleeps about 2/3 of the day.
203
Honeybees never sleep.
276
Termites work 24 hours per day and they do not sleep.
57