Cows can sleep standing up, but they can only dream lying down.
745
Lack of water is the #1 trigger of daytime fatigue.
148
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22
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
44% of kids watch television before they go to sleep.
106