for a baby - no such thing For a toddler - should get 12-14 hours per day for kids age 5+ - should get 10-12 hours per day for teenagers - 12 hours is acceptable (their hormones are changing and new studies show they need more sleep than they are getting now) Adults - personal decision, at least 8 hours, but more than 12 makes you groggy and too much sleep can cause depression (from a chemical imbalance).
Young people usually need 9-10 hours of sleep which relaxes their mind and helps them wake up fresh for the new day.
Most adults need 6-8 hours of sleep, but children or growing people may need 7-9 or more, depending on age.
Most adults need seven to eight hours a night for the best amount of sleep, although some people may need as few as five hours or as many as 10 hours of sleep each day.
Some people need more sleep than others for several reasons. Some people are busier and need more sleep and some may need more sleep due to genetic reasons.
My doctor has told me that tweens need 9 hours of sleep a night! A Sleep Doctor should tell you to sleep 10 hours of sleep not 9 hours. Now Adult can sleep up to 6 hours, there bodys don't need that much sleep:)
at least 8 hours of sleep
Lizards needs 11hrs of sleep
an adult need sleep of maximum 8 hours.
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.
between 5-7 hours of sleep. Children need at least 7-8 hours of sleep
alot
While sleep requirements vary slightly from person to person, most healthy adults need seven to nine hours of sleep per night to function at their best. Children and teens need even more. And despite the notion that our sleep needs decrease with age, most older people still need at least seven hours of sleep.