Sleep requirements are dependent mainly on age and activity level. A baby normally has around 12 to 14 hours sleep; a teenager (12- to 17-year-old) should have 9 to 10 hours; an adult can normally get away with 8 hours of sleep.Adults need 7-9 hours of sleep. If still tired they should sleep even more.normally eight hours
You should sleep six hours in the morning.
Adult: 6 hoursChild: 8-9 hours
8 hours is taken to be a good and agreed estimate.
They should have 8 or more hours of sleep in a day.
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
a cat shauld sleep 10-15 hours.
At least 8 hours of sleep.
8hrs is recommended for all humans
Sleep requirements vary with age. The average best sleep for a normal adult is seven and one-half to eight hours.
At least 8 hours of sleep.
9 or more hours