Blue light fends off drowsiness in the middle of the night, which could be useful to people who work at night.
240
Those who get out of bed by 7am are more likely to be thinner and happier.
19
Lack of water is the #1 trigger of daytime fatigue.
148
47% of people have a nightmare at least once a month.
186
People who sleep late have more mental stamina and can outperform early risers.
33
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23