8-10 hours. you dont want them to over sleep
Up to 8-12 hours for children 10-15 years old
i think they can according to doctors.But they grow most in the day,since they are more active.
8-10 hours.
well... 12 years old supposed to sleep 8 hours a sleep.
9-10 hours of sleep.
2000 years
around about 10 hours.
They need their beauty sleep
at least 8 hours sleep every night
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.