Sea otters hold hands while sleeping so they don’t drift away from each other.
104
The average cat sleeps about 2/3 of the day.
203
You can reschedule your sleeping pattern by not eating 12-16 hours before you want to be awake. Upon eating after this time period, your internal clock will reset to a new day, with the time of your first meal being interpreted as "morning".
11
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
Termites work 24 hours per day and they do not sleep.
57
People who sleep late have more mental stamina and can outperform early risers.
33