The average person falls asleep in seven minutes.
115
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
The higher someone’s I.Q. the more likely they are to be sleep deprived.
29
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23