The higher someone’s I.Q. the more likely they are to be sleep deprived.
29
Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15
Bats sleep 18-20 hours per day.
5
If you hold farts in during the day, they'll just come out when you sleep.
16
Lack of water is the #1 trigger of daytime fatigue.
148