AutoSet for Her Clinical Trial Protocol

Inclusion Criteria: * Pre-menopausal females aged ≥ 18 years * Current positive airway pressure (PAP)(CPAP or APAP) therapy user with 'current' defined as on PAP therapy for at least 1 month prior to study entry * Diagnostic PSG available * Diagnosis of mild-moderate OSA (AHI ≤ 30) * Participants willing and able to give written informed consent Exclusion Criteria: * Participants currently using Bi-level PAP * Participants currently using supplemental oxygen * Participants who are pregnant * Subjects who have a pre existing lung disease/ condition that would predispose them to pneumothorax (for example: COPD, lung cancer; fibrosis of the lungs; recent (\< 2years) case of pneumonia or lung infection; lung injury) * Participants who the researcher believes are unsuitable for inclusion because either: * they do not comprehend English * they are unable to provide written informed consent * they are physically unable to comply with the protocol