Aimed at parents, this guide to helping teens get better sleep explains their unique requirements and the effects of adolescent changes in brain function, and it offers tips on how to help them get more sleep. Emsellem (Center for Sleep and Wake Disorders, Chevy Chase, Maryland), also a parent, describes why teens stay up late and sleep all day, the effects of deprivation, the connection to learning, and the process of sleep. Also discussed are ways to talk to children about the problem, and following a program. The other sections cover disorders, family and community support, and sleep and adolescents around the world. Annotation ©2006 Book News, Inc., Portland, OR (booknews.com)