Eight hours of sleep are required because hormones and endorphins are produced as you sleep, during REM cycles. REM cycles, when rapid eye movement occurs, happen about every two hours, and four cycles are required to create enough endorphins to last throughout the day.
You need 8 hours of sleep, and you have to be in deep sleep at 1-4 a.m.
About 8 hours
teens need 2 sleep 8-10 hours an sleeps 6-8 hours. u do the math!
Kids need 10 hours of sleep besides 8 because they are still growing
Around 8 hours or more but you can sleep less if you wan to or need to so about 8 hours.
between 5-7 hours of sleep. Children need at least 7-8 hours of sleep
Its compulsary for a teen ager to sleep 8 hours..
at least 8 hours of sleep
about 8 to 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.
Ages 13-18 need about 8 to 10 hours of sleep. Adults between 25 and 64 years of age need an average of 7 to 9 hours of sleep per night. Adults 65 and older need 7 to 8 hours per night.
an adult need sleep of maximum 8 hours.