i wouldn't know im only 19 but probably 10 hours which is right in between the most hours of sleep someone should get which is 12 hours and the least amount you should get which is 8. i hope i did a little help for you. :P
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
They should have 8 or more hours of sleep in a day.
A nine year should be getting 9-12 hours of sleep.
At least 8 hours of sleep.
A four year old should sleep 12 hours a day
At least 8 hours of sleep.
A ten year old should sleep at least 8 to 9 hours a day.
8 hours
A 5 year old should sleep around 10 to 11 hours and adults should sleep around 7-8 hours.
13 hours sleep per day?
A 17 year old man should have about 7.5-8 hours of sleep each night.
An 8 year old should get 8 hours of sleep because that's what a doctor would recommend