amount of sleep needed for a healthy sleep
1 Teenagers need about 8.5-9.5 hours on average.  Most adults need 7 to 9 hours a night for the best amount of sleep, although some people may need as few as 6 hours or as many as 10 hours of sleep each day. Of the 12,000 teens included in this study, 68.9% reported sleeping fewer than 8 hours per night. The National Sleep Foundation recommends that 8.5 to 9.25 hours of sleep a night is an appropriate and healthful amount of sleep for teens. In 2006, the NSF conducted a national poll on teens and their sleep habits. The number of hours of sleep you need to stay healthy and alert differs according to your age. Teenagers need between 8 to 10 hours of sleep, while adults should get 7 to 9 hours. Sure, you’re eating your vegetables and fruits and squeezing in exercise at least 20 minutes a day, but are you getting enough sleep, too? That's two hours less than the current federal guidelines, which recommend approximately 9 hours of nightly sleep for adolescents. BYU researchers analyzed the amount that teens slept on a nightly basis in relation to how the teens scored on standardized tests. 1 Pre-school children require 10-13 hours a day. 2  School-age children require 9-11 hours a day. 3  Teenagers need about 8.5-9.5 hours on average.  Most adults need 7 to 9 hours a night for the best amount of sleep, although some people may need as few as 6 hours or as many as 10 hours of sleep each day. As a result, widely accepted guidelines for teens include getting in 9 hours of sleep per night. A new study challenges these standard guidelines for how much sleep is optimal for teenagers, at least when it comes to academic performance. 1 Teenagers need about 8.5-9.5 hours on average. 2  Most adults need 7 to 9 hours a night for the best amount of sleep, although some people may need as few as 6 hours or as many as 10 hours of sleep each day.  Women in the first 3 months of pregnancy often need several more hours of sleep than usual. 1 School-age children require 9-11 hours a day. 2  Teenagers need about 8.5-9.5 hours on average.  Most adults need 7 to 9 hours a night for the best amount of sleep, although some people may need as few as 6 hours or as many as 10 hours of sleep each day. 1 Most adults need 7 to 9 hours a night for the best amount of sleep, although some people may need as few as 6 hours or as many as 10 hours of sleep each day.  Women in the first 3 months of pregnancy often need several more hours of sleep than usual. The National Sleep Foundation and a panel of 18 experts combed through more than 300 studies to identify the ideal amount of time a person needs to sleep according to their age: 1  Newborns (0 to 3 months): 14 to 17 hours of sleep.  Infants (4 to 11 months): 12 to 15 hours of sleep.
Teenagers need between 8 to 10 hours of sleep, while adults should get 7 to 9 hours.