Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
There's a love mattress that is specifically designed for couples who sleep on each other's arms.
12
Lack of water is the #1 trigger of daytime fatigue.
148
You forget 90% of your dreams.
256
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
Dieters who sleep more take off more fat that those who sleep less.
159
Those who get out of bed by 7am are more likely to be thinner and happier.
20