Clinical Research Directory

Inclusion Criteria: * Must have a diagnosis of OSA (AHI ≥ 5), with central events less than 50% of all events. * Must have used a PAP device for more than 4 months. * Must use PAP therapy for more than 4 hours per night. * Must have a median therapy pressure between 6 and 20 cmH₂O. * Must be able to operate the study devices at home and wear the sleep diagnostic ring each night. * be able to understand English and give written informed consent. Exclusion Criteria: * Subjects actively using bi-level PAP or require oxygen therapy. * Excess leak (greater than 24 L/min) for more than 10% of the time on therapy. * Known treatment-emergent or complex central sleep apnea. * Significant or unstable cardiovascular, respiratory, neurological, or psychiatric disease. * Any condition that, in the opinion of the clinician, makes unsupervised home use unsafe. * Neuromuscular disease, hypoglossal-nerve palsy, severe restrictive or obstructive pulmonary disease, moderate-to-severe pulmonary arterial hypertension, severe valvular heart disease, New York Heart Association class III or IV heart failure, recent myocardial infarction or severe cardiac arrhythmias, or persistent uncontrolled hypertension despite medication use. * Pregnancy, planning to become pregnant, or breastfeeding.