Adolescents are among the most sleep deprived populations in our society. This book explores the genesis and development of sleep patterns at this phase of the life span. It examines biological and cultural factors that influence sleep patterns, presents risks associated with lack of sleep, and reveals the effects of environmental factors such as work and school schedules on sleep. This study will appeal to psychologists and sociologists of adolescence who have not yet considered the important role of sleep in the lives of our youth.