Clinical Research Directory

Inclusion Criteria: * Patient, male or female, aged over 18 * Patient in preparation for bariatric surgery (ring, Sleeve gastrectomy or Bypass) in the center CELIOBE. * Patient affiliated with social security or beneficiary of such a scheme * Patient having signed the free and informed consent Exclusion Criteria: * Patient who has already had bariatric surgery (ring, sleeve gastrectomy or bypass). * Patient already receiving CPAP treatment for sleep apnea syndrome. * Patients with pathology indicating the use of CPAP in self-guided mode (heart failure with altered ejection fraction) for patients diagnosed with OSAS * Patient likely, in the opinion of the investigator, not to be cooperative or respectful of the obligations inherent to participation in the study * Patient suffering from mental pathology does not make possible the collection of a consent. * Protected patient: major under guardianship, curatorship or other legal protection, deprived of liberty by judicial or administrative decision * Pregnant, lactating or parturient woman * Patient hospitalized without consent