eight hours
A nine year should be getting 9-12 hours of sleep.
Eight or nine hours each night.
At least nine hours per night, and nine and a half is reasonable, as well.
A nine-year-old should have about 9-11 hours sleep each night.
i have about 8.5 to nine hours
AT LEAST 8 HOURS THAT IS THE PRESCRIBED AMOUNT FOR EVERYONE .A 12-YEAR OLD SHOULD GET NINE OR TEN HOURS PER NIGHT. EIGHT HOURS IS ENOUGH FOR SOME ADULTS, BUT SOME NEED MORE.
Minimum 6 hours sleep in a day is good for nine year old girl's health.
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
Hours of what?
Count backward nine hours from when he needs to get up and you should have it.
A fourteen year old should get nine hours of sleep each night.
nine hours at the least