ill effects recommends NHIBI National Heart, Lung and Blood Institute How Much Sleep is Enough? "How Much Sleep Is Enough?" 7 to 8 hours How Much Sleep Is Enough? require more sleep National Institute of Health рекомендуется nine and 10 hours eight hours U.S. National Heart, Lung, and Blood Institute 7-8 hours sleep a night National Institutes of Health Lack of sleep 7 and 8 hours nine and 10 hours National Heart, Lung and Blood Association National Heart, Lung and Blood Institute How Much Sleep Is Enough? NIH between 7 and 8 hours of sleep U.S. Department of Health and Human Services National Institutes of Health 7-8 hours of sleep the National Institutes of Health recommends seven and eight hours National Heart, Lung and Blood Institute National Institutes of Health How Much Sleep is Enough? (NIH) US Department of Health & Human Services recommends Clinical studies NHIBI nhlbi.nih.gov, nine and 10 hours seven and eight hours National Heart, Lung and Blood Institute a handy chart 7-8 hours of sleep most adults How Much Sleep is Enough? 7-8 hours sleep a night nine and 10 hours Find out. National Health Interview Survey says NHIBI "How Much Sleep Is Enough?" 7-8 hours sleep a night "How Much Sleep Is Enough?" Sleep guidelines nine and 10 hours National Heart, Lung and Blood Institute adults get 7-8 hours of sleep per night nine and 10 hours National Institutes of Health How Much Sleep Is Enough? NIH How Much Sleep Is Enough? National Institutes of Health seven and eight hours How Much Sleep Is Enough? seven to eight hours of sleep at night National Institute of Health eight hours sleep debt The National Institutes of Health between 7 and 8 hours National Institutes of Health nine and 10 hours National Heart, Lung and Blood Institute (NHLBI 7-8 hours sleep a night 7-8 hours sleep a night seven and eight hours 7-8 hours sleep a night vary by individual to feel well-rested recommend Sleep deprivation how much nine and 10 hours recommended amount NHIBI nine and 10 hours nine and 10 hours adults should get seven to eight hours How Much Sleep is Enough? recommends seven and eight hours seven and eight hours How Much Sleep Is Enough? 7-8 hours sleep a night nine and 10 hours nine and 10 hours