In this comprehensive review, leading experts on sleep disorders present up-to-date information on diagnosis and treatment. Each chapter is devoted to a single disorder or family of disorders. In addition to the major sleep disturbances, several chapters cover sleep disorders associated with psychiatric conditions, organic conditions, and drug abuse. A final chapter deals with pharmacological treatment of pathological sleep. Thoroughly updated and revised, the material presented here has been reorganized to follow the recently accepted nosology as defined by the Association of Sleep Disorder Centers. Unlike the First Edition, which was written as a text on the subject, the information here is specifically intended for a graduate-level readership.