There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Lack of water is the #1 trigger of daytime fatigue.
148
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22
Termites work 24 hours per day and they do not sleep.
57
The human brain is more active during sleep than during the day.
28
Bats sleep 18-20 hours per day.
5
Honeybees never sleep.
276