How Much Sleep Is Good Sleep?

There is no holy grail about how long you sleep. Currently, many health groups recommend 7–9 hours of sleep for healthy adults and more for children. The National Heart, Lung, and Blood Institute recommends 7 to 8 hours, while the National Sleep Foundation recommends 7 to 9 hours for adults. Other studies have shown that the ideal number is 7 hours. And while many…