Author Affiliations: Department of Pediatrics, Child Development Center, and Children's Research Center, University Children's Hospital Zurich, Switzerland.
Over the past years, we have seen an increasing number of reports1- 4 presenting “growth curves” (ie, percentiles) of sleep duration for children and adolescents. In fact, sleep duration stands in many respects at the hub of research about children's sleep, inasmuch as many areas of study are directly or indirectly concerned with identifying, comparing, and eventually helping to promote adequate amounts of sleep for children at varying stages of development.
Jenni OG. How Much Sleep Is “Normal” in Children and Adolescents?. JAMA Pediatr. 2013;167(1):91-92. doi:10.1001/jamapediatrics.2013.429