They are among the estimated 2% of the population known as “long sleepers,” reports The Washington Post.
“I cringe whenever I hear somebody say longer sleep is bad for you,” says Nathaniel Watson, a sleep medicine specialist in Seattle and a past president of the academy. “There is no evidence that sleep in and of itself is bad for you. There is a ton of evidence that — when you sleep-deprive people — everything — performance, mood, immunity — suffers. But there is no clear scientific evidence that extended sleep has any negative physiological consequences for healthy individuals.”