A second mutation that makes people need less sleep has been found

A genetic mutation that lets people feel fully rested with less than six hours sleep has been identified, months after a similar discovery

Source:
https://www.newscientist.com/article/2220092-a-second-mutation-that-makes-people-need-less-sleep-has-been-found/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home