The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
Sea otters hold hands while sleeping so they don’t drift away from each other.
104
Lack of water is the #1 trigger of daytime fatigue.
148
Termites work 24 hours per day and they do not sleep.
57
A hippo sleeping underwater automatically rises to the surface every ~4 minutes and breathes without waking.
23
"Dysania" is the state of finding it hard getting up out of bed in the morning.
33
In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
People who sleep late have more mental stamina and can outperform early risers.
33