One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
People who sleep late have more mental stamina and can outperform early risers.
33
If you hold farts in during the day, they'll just come out when you sleep.
16
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
A new parent will lose about 1055.6 hours of sleep in the first year of their child's life - almost 44 days!
6
Staying awake for 17 hours is the same for your body as drinking 2 glasses of wine.
193
"Dysania" is the state of finding it hard getting up out of bed in the morning.
33
You burn more calories sleeping than you do watching television.
348