Human sleep isn't exceptionally short

The threat of predators may have led humans to sleep less than tree-living primates. Yet, scientists point out that existing data about sleep in primates come from captive animals, who may sleep more because the animals are bored.

Having data from more wild animals would help sleep researchers although it is more challenging to do. If scientists had a clearer picture of primate sleep in the wild, it might turn out that human sleep isn’t as exceptionally short as it seems.