While most humans enjoy sleeping an average of seven hours per night, elephants, one of the world’s largest land mammals, only seem to need a fraction of that according to a new study this week in PLOS ONE.
Sleeping is a basic part of our everyday lives, yet surprisingly little is known about its purpose and evolutionary history.
Human sleep vs. animal sleep?
Insomniacs take heart: Humans get by on significantly less sleep than our closest animal relatives. The secret, according to a new study, is that human sleep is more efficient.