A Study to Determine the Flow Changes And/or AHI Reduction When Stimulating Two Targets (neural And/or Muscular) for the Treatment of Obstructive Sleep Apnea in Adult Subjects

Inclusion Criteria: A patient must meet all of the following inclusion criteria to be eligible for inclusion in this study: * Age above 18 years not under guardianship, under curatorship or under judicial protection. * Body Mass Index (BMI) \< 38 kg/m2. * Subject must be eligible for neck dissection surgery. * Written informed consent obtained from the patient prior to performing any study specific procedure. * Willing and capable to comply with all study requirements, including specific lifestyle considerations, evaluation procedures and questionnaires for the whole duration of the trial. Exclusion Criteria: Patients meeting any of the following criteria will be excluded from participation in this study: * Major anatomical or functional abnormalities that would impair the ability of the electrode arrays to be positioned. * Significant comorbidities that contraindicate surgery or general anesthesia. * Significant tongue weakness. * Aerodigestive tract tumor or reconstructive surgery performed at the same time as neck dissection. * Any other chronic medical illness or condition that contraindicates a surgical procedure or general anesthesia in the judgment of the investigator. * Prior surgery or treatments that could compromise the placement and effectiveness of the electrode array systems: * Airway cancer surgery or radiation, or * Mandible or maxilla surgery in the previous 3 years (not counting dental treatments). * Other upper airway surgery to remove obstructions related to OSA in the previous 3 months (e.g., uvulopalatopharyngoplasty (UPPP), tonsillectomy, nasal airway surgery). * Prior hypoglossal nerve stimulation device implantation. * Currently pregnant or breastfeeding during the study period. * Concomitant oral or pharyngeal surgery.