Sleep in children and adolescents is reviewed in this issue of Pediatric Clinics, guest edited by Drs. Judith Owens and Jodi Mindell. Drs. Owens and Mindell have gathered a panel of experts in the field of pediatric sleep medicine to pen reviews on topics including Evaluating sleep and sleep disorders in the pediatric primary care setting, insomnia, sleep-disordered breathing, Restless legs syndrome and periodic limb movement disorder, Circadian rhythm disorders, Sleep in adolescents: the perfect storm, Neurocognitive dysfunction and sleep, Sleep in children with Attention Deficit Hyperactivity Disorder, Sleep in children with Autism Spectrum Disorders, Sleep problems in children with common medical disorders, Sleep and obesity, Sleep health education, Cultural issues in children's sleep, and Sleep in the family.