They should have 8 or more hours of sleep in a day.
How many hours does it sleep
18 years = 157,784.63 hours.
eighteen
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
Eighteen hours is less than twenty four, which is the length of one earth day. Eighteen hours is three-quarters of one earth day.
Its compulsary for a teen ager to sleep 8 hours..
40 hours. You are an adult at 18 .
There are 730 hours in 1 month.