Sea otters hold hands while sleeping so they don’t drift away from each other.
104
Sleeping on your stomach can induce weirder, scarier, and sexier dreams.
22
Lack of water is the #1 trigger of daytime fatigue.
148
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
Cows can sleep standing up, but they can only dream lying down.
745
Dieters who sleep more take off more fat that those who sleep less.
159
"Dysania" is the state of finding it hard getting up out of bed in the morning.
33