1. General introduction to OSA and why we need alternative treatments. 2. Sleep studies: polysomnography and polygraphy, in hospital and home sleep testing. 3. Drug induced sleep endoscopy (DISE) and the VOTE system. 4. Standard ENT surgery for OSA. 5. Interactive DISE session (interpretation of a series of DISE videos, and translation of findings to treatment options). 6. Non-surgical OSA treatment: new generation positional therapy and multimodality treatment. 7. Upper airway stimulation