Zephyr Sleep Technologies (the Sponsor) has developed a method of identifying OAT responsive participants and their efficacious mandibular protrusion. A remotely controlled mandibular positioner (RCMP) is used during polysomnographic monitoring to vary the mandibular position. The in-lab version of the device, requiring use of a sleep technologist during a polysomnographic study, was shown to accurately predict outcome with a custom oral appliance in a triple-blind, prospective, predictive study in sixty-seven participants with mild-to-severe sleep apnea (specificity: 92%; PPV: 94%; sensitivity: 86%; NPV: 83%). In addition, the predicted target mandibular protrusive position proved efficacious in 87.5% of cases. While accurate in prospectively identifying oral appliance responders, the availability and utility of the RCMP device is limited by the requirement of a polysomnographic study.