how many hours sleeping is good for mybaby

A. After completing the age of 8 to 12 months if a child is maintaining a sleep for minimum of 8 to 10 hours also in a day in totality than that is good Enough because this is the minimum amount of sleep that a person even a child requires 10 hours of sleep and adult requires about 7 to 8 hours so for the age it should be somewhere like this