A 10-year-old is approximately 87,600 hours old, assuming a typical year has 365 days. This calculation is based on 10 years multiplied by 365 days, then multiplied by 24 hours. If accounting for leap years, which occur roughly every four years, you would add an additional 2 days, bringing the total to about 87,664 hours.
9 - 10 hours
9-10 hours
8 - 10 hours.
10-11 hours every night are the optimum hours of sleep an eight-year-old should get.
About 10-12 hours
about 8 to 10 hours of sleep
8 hours 12 year old should go to be 10 to 11
About 9 or 10
The average amount of sleep a 10 year old should have is around 8-11 hours
minimum 8 hours maximum 10 hours
8 to 10
10 to 11 year old girls need 8 full hours of sleep.