12 hours sleep needed
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
1,547 hours
At least 8 hours of sleep.
about 8 to 10 hours of sleep
At least 8 hours of sleep.
A nine year should be getting 9-12 hours of sleep.
Approximately 3,600 hours per year.
10-11 hours every night are the optimum hours of sleep an eight-year-old should get.
They should have 8 or more hours of sleep in a day.
13 hours sleep per day?
8 hours,,,...