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Sleep requirements vary by age and personal factors, but most adults need 7-9 hours of sleep per night to function at their best. You may need more or less depending on your lifestyle and age.
During the recommended seven to nine hours of sleep, we typically go through three to five sleep cycles per night, with the duration of REM sleep getting longer each subsequent time, Varga explains.
Adults should sleep 7 or more hours per night. ... Some adults need nine or 10 hours of sleep every night to feel rested, says Harris, whereas others may find they only need seven, and sleeping ...
The American Academy of Sleep Education says most healthy adults only need seven hours of sleep per night, debunking the idea that the magic number for everyone is eight hours. However, the ...
The National Sleep Foundation recommends that adults aim for 7–9 hours of sleep per night, while children and teenagers require even more. For healthy individuals with normal sleep, the appropriate sleep duration for school-aged children is between 9 and 11 hours.
Children need many hours of sleep per day in order to develop and function properly: up to 18 hours for newborn babies, with a declining rate as a child ages. [65] Early in 2015, after a two-year study, [91] the National Sleep Foundation in the US announced newly revised recommendations as shown in the table below.
Thirteen- to 18-year-olds need about eight to 10 hours of sleep per night, but the sleep schedule shifts, with bedtime coming later in the evening and wake-up coming later in the morning. Parents ...
As sleep time decreased over time from the 1950s to 2000s from about 8.5 hours to 6.5 hours, there has been an increase in the prevalence of obesity from about 10% to about 23%. [ 2 ] Weight gain itself may also lead to a lack of sleep as obesity can negatively affect quality of sleep, as well as increase risk of sleeping disorders such as ...