1 to 2 hours a day is healthy.
at least 3 hours
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?
eight hours
7 hours a week, for champions
8 hours
A nine year should be getting 9-12 hours of sleep.
3600 hours just kidding it is about 3500 seconds witch is 60 minutes witch is 1 hour
10 to 11 year old girls need 8 full hours of sleep.
A four year old should sleep 12 hours a day
8 hours 12 year old should go to be 10 to 11
They should have 8 or more hours of sleep in a day.