Written Exam


The following requirements must be completed before you may sit for the Written Exam for subspecialty certification in Sleep Medicine:

  • Hold primary certification from one of the AOA certifying boards that is active and in good standing.
  • Successful completion of a one-year AOA-recognized fellowship in sleep medicine, completed after July 1, 2009.
  • Hold a valid and active license to practice medicine in a U.S. state.


At the time of application, you must submit to the board:

  • A completed application
  • All required fees
  • Substantiation of your expertise in sleep medicine from the program director in your Sleep Medicine fellowship.

Exam Dates and Deadlines

The Sleep Medicine subspecialty certification exam is held once per year, generally every August. The application period opens in December, the year before the exam, and applications are due June 1, with a final deadline of July 1.

Exam Content Outline

The subspecialty in Sleep Medicine examination measures the knowledge, skills, and judgment of osteopathic physicians with expertise in sleep medicine. The Sleep Medicine exam is a 4.5-hour written examination consisting of 200 multiple-choice, single-answer questions taken from current literature, including journals, monographs, recent publications, and recognized texts.

Subspecialty Certification
Fundamentals of sleep 10-12%
Polysomnographic interpretation and scoring 15-17%
Technical aspects of operations of sleep lab 3-5%
Circadian rhythm disorders 5-7%
Insomnia 12-14%
Sleep center management, ethics, public policy 2-4%
Hypersomnia disorders 11-13%
Parasomnias 10-12%
Sleep related breathing disorders 15-17%
Sleep related movement disorders, Seizure 6-8%