4 hours
10-11 hours every night are the optimum hours of sleep an eight-year-old should get.
How many hours does it sleep
every 90 minutes
i think that astronauts usually get about six hours of sleep every night when they are in space.
well it depends if you sleep 12 hours every day for 24 years you would have gotten about 12 years of sleep.
every child 5 or older should sleep 8-9 hours everyday
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
about 10 hours of sleep
you must get atleast 9 hours of sleep
I sleep about 7 to 9 hours a day
Its compulsary for a teen ager to sleep 8 hours..
6 Hours of sleep is enough