Bats sleep 18-20 hours per day.
5
A new baby usually deprives each of it's parents around 350-400 hours of sleep in the first year. That is one entire nights sleep per week, per parent.
194
Cows can sleep standing up, but they can only dream lying down.
745
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
The average person falls asleep in seven minutes.
115
Termites work 24 hours per day and they do not sleep.
57
A new parent will lose about 1055.6 hours of sleep in the first year of their child's life - almost 44 days!
6
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12