The Registered Sleep Technologist (RST) credential is an objectively designed pathway for trained sleep technologists to demonstrate their knowledge and aptitude in sleep technology. In order to obtain the RST credential, a sleep technologist must pass the Sleep Technologist Registry Examination. The next Sleep Technologist Registration exam will be offered August 11-September 7, 2012. The deadline to apply for the examination has been extended to July 16, 2012.