Sleep apnea is a prevalent problem and references for the evaluation of this condition often exceeds the sleep clinic's capacity thus creating important delays in the patients' care.

The overall goal of this project is to assess the feasibility and the non-inferiority of integrating a clinical nurse, or supernurse, to the initial consultation team.

The hypothesis is that the integration of a clinical nurse to the sleep clinic's evaluation team is non inferior in terms of patients' outcomes such as improvement of symptoms and quality of life as well as adherence to treatment.

This study is supported by funding dedicated to teaching and research activities related to sleep-disordered breathing.

Inclusion Criteria:

• Patients referred to the ''Institut Universitaire de Cardiologie et Pneumologie de Québec'' 's sleep clinic who have undergone a cardiorespiratory polygraphy.
• Body mass index (BMI) between 27-35 kg/m2;
• Apnea-Hypopnea Index (ADI) equal or above 20 events per hour with less than 5 events per hour of central origin;
• Oxygen Desaturaton Index (ODI) equal or above 10 events per hour;
• Percentage of time spent below 90% of oxygen saturation equal or less than 10%

Exclusion criteria :

- Patients not meeting the above inclusion criteria.