8-9 hours
At least 8 hours of sleep.
9
About 7 to 8 hours.
average reccomended sleep hours for a teenager is 9 to 10 hours.
12 year old girl needs only 8 hour uninterupted sleep good luck
You should sleep six hours in the morning.
8 hours 12 year old should go to be 10 to 11
A preteen should get around 9 hours of sleep.
They should have 8 or more hours of sleep in a day.
if you mean how many hours you should sleep in a year it would be 3,650 hours of sleep for a regular year not a leap year
a cat shauld sleep 10-15 hours.
At least 8 hours of sleep.