The AASM Manual for the Scoring of Sleep and Associated Events: Rules, Terminology and Technical Specification provides a comprehensive and definitive reference for the evaluation of polysomnograms. The Manual is the result of an extensive review of the literature, analysis and consensus by task forces comprised of renowned sleep experts. It provides standard montages, electrode placements and digitization parameters. Building on the classic manual by Rechtschaffen and Kales, the new manual provides rules not only for scoring sleep stages but also for scoring arousals, respiratory events during sleep, movements during sleep and cardiac events. This new publication will quickly become an essential resource for technologists as they perform and score polysomnographic recordings as well as the physicians who interpret them. The Manual was edited by Con Iber, MD, assisted by a Steering Committee that included Sonia Ancoli-Israel, PhD, Andrew Chesson Jr., MD and Stuart Quan, MD.