Cows can sleep standing up, but they can only dream lying down.
745
"Dysania" is the state of finding it hard getting up out of bed in the morning.
33
If you hold farts in during the day, they'll just come out when you sleep.
16
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
47% of people have a nightmare at least once a month.
186
You forget 90% of your dreams.
256