How Much Sleep Do We Need?
The amount of sleep each person needs depends on many factors, including age.
Infants generally require about 16 hours a day, while teenagers need about 9
hours on average. For most adults, 7 to 8 hours a night appears to be the best
amount of sleep, although some people may need as few as 5 hours or as many as
10 hours of sleep each day. Women in the first 3 months of pregnancy often need