Infants, children, and teens all need more sleep than the average adult. For years, we’ve heard varying but similar ranges from different sources, but now a recent consensus statement by the American Academy of Sleep Medicine (AASM) has helped put this debate to bed.
Source: http://vitals.lifehacker.com/the-amount-of-sleep-that-kids-and-teens-need-to-be-heal-1782227552