Proof-of-Concept Study to Determine the Flow Changes When Stimulating Two Neural Targets for the Treatment of Obstructive Sleep Apnea

Inclusion Criteria: * Age above 18 years not under guardianship, under curatorship or under judicial protection. * Body Mass Index (BMI) \< 35 kg/m2. * Subject suffers from OSA (15 \< AHI \< 80) documented by a sleep study performed during the past 36 months. * Subject must be eligible for a diagnostic or surgical procedure. * 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: * 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 * 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, * 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