Comparison of Two Techniques of Combination Therapy for Treatment of Obstructive Sleep Apnea (OSA)

To study the effects of two combination therapies for patients with obstructive sleep apnea (OSA) who have been both intolerant to Positive Airway Pressure (PAP) therapy and sub‐therapeutic to oral appliance therapy. Hypothesis 1. There is a difference between Continuous Positive Airway Pressure (CPAP) vs CPAP/Oral Appliance (OA) connect vs CPAP/OA disconnected in terms of: 1. Apnea Hypopnea Index (AHI) reduction 2. Amount of side effects 3. Amount of Leaks 4. Hours of use (compliance) 5. CPAP pressure 2. There is a difference between connected and disconnected for the following symptoms: 1. Epworth sleepiness Scale (ESS) 2. Functional Outcomes of Sleep Questionnaire (FOSQ) 3. Side effects Study Design ‐ randomized prospective parallel