Lack of water is the #1 trigger of daytime fatigue.
148
A new baby usually deprives each of it's parents around 350-400 hours of sleep in the first year. That is one entire nights sleep per week, per parent.
194
Cows can sleep standing up, but they can only dream lying down.
745
One reason that kittens sleep so much is because a growth hormone is released only during sleep.
212
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Those who get out of bed by 7am are more likely to be thinner and happier.
20
Dieters who sleep more take off more fat that those who sleep less.
159
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23