The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
Sleeping on the job is acceptable in Japan. It is viewed as exhaustion from working hard. Some people fake it to look committed to their job.
57
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
You burn more calories sleeping than you do watching television.
348
The human brain is more active during sleep than during the day.
28