8 to 10 hours but if she sleeps to much you might still be tired
for more information go to: beinggirl.com
According to Dr. Richard Ferber in his book "Solve Your Child's Sleep Problems," an 8-year-old requires between 9.75-10.75 hours of nighttime sleep.
Eight hours.
Since you are still growing, a 12 year old girl should get 9-10 hours of sleep a night.
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
9-10 hours of sleep.
12 hours sleep needed
I think 8-hrs
If a 12 year old girl must be put to sleep for a procedure, the dentist will likely use general anesthesia, which is an injection. However, if complete unconsciousness is not needed, the patient may just be sedated with a gas.
from 8 to 11 hours for additional information go to: beinggirl.com
A 12-year-old girl should ideally get 9-12 hours of sleep each night for her overall health and well-being.
Minimum 6 hours sleep in a day is good for nine year old girl's health.
Well the answeris 10-12 hours each day because you need to have fun at night but still get sleep.