One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
The average person falls asleep in seven minutes.
115
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
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
Quick naps not only improve your alertness, but they also help in decision making, creativity and sensory perception.
149
Cows can sleep standing up, but they can only dream lying down.
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