Does lack of sleep affect growth of a child?

It can: Kids need sleep and good nutrition to grow.

Yes: There are several phases of sleep and one of the most important levels for maximum rest and renovation is delta phase. This is the deepest level of sleep in which hgh (human growth hormone) is released and in children provides one of the most potented hormones that naturally helps the body to grow and develop. This is why infants require so much sleep.

Yes: Many children have delayed-onset sleep because of overstimulation by tv's & " video" games in their bedrooms, lack of consistent bedtimes/ soothing bedtime routines, lack of adequate exercise/physical activity, or laxity in parenting. Night waking often disturbs consolidated sleep when children don't learn to fall asleep alone in their own beds or obesity leads to sleep apnea & adhd symptoms.