This report summarizes the presentations and discussion at a workshop on adolescent sleep. The workshop was organized by the Board on Children, Youth, and Families and the Forum on Adolescence of the National Research Council and Institute of Medicine. The workshop brought together policy makers, researchers, and practitioners to examine research on adolescence and sleep, focusing on adolescents' sleep needs, typical sleep patterns, influences on sleep problems and disturbances, and the consequences of insufficient sleep. The topics covered are: (1) adolescent development and sleep; (2) adolescent sleep patterns and daytime sleepiness; (3) consequences of insufficient sleep; (4) identifying and intervening in clinical sleep problems; (5) changing school starting times; (6) educating the public about adolescent sleep needs; (7) next steps, including increasing public awareness about sleep needs, documenting the sleep debt in high school students, and designing appropriate interventions. The workshop agenda and a list of participants are appended. (Contains 37 references.) (KB)