 Obstructive Sleep Apnea OSA is a common sleep disordered breathing condition effecting around 2-4 of the middle aged population and is characterized by periodic collapse of the upper airway during sleep. Continuous Positive Airway Pressure CPAP is the primary treatment for patients with OSA. Despite the effectiveness of CPAP in abolishing upper airway obstruction, acceptance of and adherence with therapy has been sub-optimal. 