Hypoglossal Nerve Stimulation for Obstructive Sleep Apnea

Inclusion Criteria: * Overweight or obese males and females BMI 25 kg/m2 to 40 kg/m2 * Age 18 years and older * Diagnosed with obstructive sleep apnea by Apnea-Hypopnea Index \>15 events/hr using 4% oxygen desaturation criteria and \< 25% central events/hr on prior sleep testing Data can be derived from home sleep testing or in-lab polysomnogram * Not able to use positive airway pressure \>4 hours for 5 nights/week or unwilling to use positive airway pressure Exclusion Criteria: * Insulin-dependent Diabetes * Inability to undergo in-lab polysomnography or home sleep testing * Central Nervous System (CNS) disease with impairment of cognitive function (dementia) and/or muscle paresis, such as stroke * Currently pregnant, trying to get pregnant or nursing * age \< 18 years * Regular and adherent CPAP use per clinical guidelines * Current night shift or rotating shift work * Diagnosis of another sleep disorder (e.g. periodic limb movement disorder) * Current systemic steroid use * Predominantly central sleep apnea or requiring oxygen or bi-level positive airway pressure or advanced positive airway pressure modalities * Protected patient: under guardianship, curatorship or other legal protection, deprived of liberty by judicial or administrative decision, including hospitalized without consent