CPAP In-home Assessment USA

Inclusion Criteria: * Aged 22 and over * Diagnosed with Obstructive Sleep Apnea (OSA) and prescribed Positive Airway Pressure (either Continuous positive airway pressure (CPAP) or AutoCPAP) * For experienced users of PAP (CPAP or AutoCPAP) - you must be using PAP of more than 4 hours/night for 70% during the last 30 days. Exclusion Criteria: * Contraindicated for PAP (CPAP or AutoCPAP) therapy * Has other significant sleep disorders (e.g periodic leg movements, insomnia, central sleep apnea) * Has obesity hypoventilation syndrome or congestive heart failure * Requires supplemental oxygen with their PAP (CPAP or AutoCPAP) device * Has implanted electronic medical devices (e.g cardiac pacemakers) * Pregnant or think they may be pregnant * Not fluent in spoken and written English.