New Sleep Recommendations for Adults

Nearly 40% of Americans sleep fewer than six hours or more than eight hours per night, on average. Both of these sleep habits—too little sleep and too much sleep—may have negative consequences.
A study released earlier this year found that adults who sleep five to six hours per night are 20% more likely to be overweight compared with those who sleep seven to eight hours. The short sleepers were also 57% more likely to be obese.

Source: https://www.healthgrades.com/right-care/sleep-disorders/new-sleep-recommendations-for-adults?cid=t11_flip&cb=ap