Studies show that usually kids between 3-5 years old need about 12 hours of sleep, and kids between 5-10 years usually need 10 hours of sleep. So a 5 year old should go to sleep about 11 hours before he/she wakes up. (Maybe a little bit more, because the wont fall asleep promptly after going to bed.)
2000 years
around about 10 hours.
at least 8 hours sleep every night
They need their beauty sleep
For as long as he/her can go without food, water, and sleep.
12 hours
It is healthy to sleep 8-10 hours a day. I only get about 7.
All humans at all ages should get 8 hours of sleep.
8-10 hours
The average adult requires 7 or 8 hours of sleep to be properly rested.
A fourteen year old should get nine hours of sleep each night.
no