You forget 90% of your dreams.
256
The average cat sleeps about 2/3 of the day.
203
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
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
The average person falls asleep in seven minutes.
115
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
You burn more calories sleeping than you do watching television.
348