Honeybees never sleep.
276
Those who get out of bed by 7am are more likely to be thinner and happier.
20
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
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
You burn more calories sleeping than you do watching television.
348
People who sleep late have more mental stamina and can outperform early risers.
33
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12