There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Cows can sleep standing up, but they can only dream lying down.
745
Bats sleep 18-20 hours per day.
5
The average person falls asleep in seven minutes.
115
You forget 90% of your dreams.
256
"Dysania" is the state of finding it hard getting up out of bed in the morning.
33