All qualifying subjects will be implanted. Subjects will be randomized 2:1 in favor of Stimulation therapy (Active Group). Randomization will occur following implant and prior to the Month 1 visit.
The Active group will start Stimulation therapy at Month 1. The Control group may continue with their current sleep apnea treatment until Month 7, and will receive Stimulation therapy beginning at Month 7 +1Day. (All subjects are excluded from use of PAP or surgical treatments after enrollment through Month 13)
Safety and efficacy will be evaluated at Month 7, and again at Month 13.
