The AASM Manual for the Scoring of Sleep and Associated Events

The Definitive Sleep Scoring Resource

The AASM Manual for the Scoring of Sleep and Associated Events: Rules, Terminology and Technical Specifications is the definitive reference for the evaluation of polysomnography (PSG) and a home sleep apnea test (HSAT). This comprehensive and continuously evolving resource provides rules for scoring sleep stages, arousals, respiratory events during sleep, movements during sleep and cardiac events. The AASM Scoring Manual also provides standard montages, electrode placements and digitization parameters. This online publication is indispensable for sleep technologists, and it is an essential reference for physicians who interpret sleep studies.

Scoring Manual Version 2.6 (released January 2020)

The Scoring Manual Subscription

Annual Subscription Only (FREE for members; $40 nonmembers)

The AASM Scoring Manual is an online and app-based resource offering you digital access from your desktop, tablet and mobile device. An annual subscription ensures that you always have immediate access to the current version of the manual, and it enables you to remain compliant with AASM accreditation standards.

Online subscriptions for the AASM Scoring Manual run on a calendar-year basis and are free to active individual and facility members. AASM Accredited Facility Members may provide unlimited access for all staff members through their primary contact account.

Already have a Scoring Manual Subscription? Login and go to “My Learning” via the “My Account Page”.

Print Version ($30 members; $50 nonmembers)

Complement your online subscription with a print version of the AASM Scoring Manual. Additional copies may be purchased after you have logged into the Scoring Manual user page.


Along with your online subscription, subscribers now have access to a list of frequently asked questions about the AASM Scoring Manual with responses.

For any additional questions about the Scoring Manual, please contact the AASM by sending an email to or calling (630) 737-9700.

Summary of Updates

The following are summaries of the revisions made for each major update of the AASM Scoring Manual including the dates when these new versions were released.

Buy Now