Sea otters hold hands while sleeping so they don’t drift away from each other.
104
If you hold farts in during the day, they'll just come out when you sleep.
16
Those who get out of bed by 7am are more likely to be thinner and happier.
20
Studies show that the colder the room you sleep in, the more likely you are to have a bad dream.
28
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
The higher someone’s I.Q. the more likely they are to be sleep deprived.
29
You forget 90% of your dreams.
256
The record for the longest scientifically documented period without sleep is 264.4 hours (eleven days).
15