they need 4 hours of exercise a week to stay healthy
about 10 hours of sleep
they're human aren't they? so wouldn't the answer be how many hours of sleep does a human need? and the answer is about 8 hours.
You need 8 hours of sleep, and you have to be in deep sleep at 1-4 a.m.
it need 7hours sleep for health
at least 9 or 10 hours to get enough sleep
6 Hours of sleep is enough
for 7 hours
about 8 to 10 hours of sleep
I'm quite sure they need at least 7 hours.
14 hours
9