Since you are still growing, a 12 year old girl should get 9-10 hours of sleep a night.
I think 8-hrs
9o'clock
uhh, for your information, you should go to the nine year old girl and ask her " how much do you need to sleep" I think tht will help . wow, you have to think, well how much do YOU need to sleep. & then come to a nine year old girl. cuz duh EVERYONE needs to sleep for like 8 till 9 hours. THINK NEXT TIME !! sholoon khara
The average 13 year old should get 9 hours of sleep per night. This is very important. A person that does not get enough sleep will often be sick more often than people who do get enough sleep.
9
12 year old girl needs only 8 hour uninterupted sleep good luck
At least 8 hours of sleep.
Well the answeris 10-12 hours each day because you need to have fun at night but still get sleep.
12 hours
Around 8 hours of sleep.
9 or 10 hours on school nights to function properly but on weekends it shouldn't really matter.