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Should you sleep for 7 hours or 9 hours? Know what the experts say.

7 to 9 hours of sleep is necessary for good health, but every person's sleep requirement is different. According to experts, along with the quantity of sleep, its quality also affects mental and ...
CNN

You might not need 8 hours of rest. Here’s how to find your perfect sleep time

With so much to do heading into the busy holiday season, is anyone getting enough sleep? Most sleep experts advise that adults get seven to nine hours of sleep per night for good health and emotional ...
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I thought 7 hours sleep was enough until I made this simple change to my routine

I used to get seven to eight hours of sleep and would describe myself as a pretty good sleeper. Or at least I thought I was sleeping well – recently I made a simple change to my sleep routine and I've ...
Forbes

A Biologist Explains Why Humans Sleep Just 7 Hours (Less Than Any Other Primate)

A number that sounds like plenty for humans turns out to be the smallest ration of sleep in the entire primate order. Biologists are still working out why. Seven hours sounds like a reasonable, even ...
The New York Times

You May Not Need Eight Hours of Sleep

Dr. McCormick is a primary care physician. Sleep is an incredible physical process. There is an early night surge of growth hormone to restore muscle and a slow drop in blood pressure that gives ...