Participants will use the trial mask in home for a period of 7 ± 3 days and also 1 overnight polysomnography session at the Fisher & Paykel Healthcare sleep lab. Baseline data will be collected from the participant during the first visit, 7 days of CPAP usage data will be downloaded and stored for analysis. The participant will use the trial device on their usual Continuous or Auto Positive Airway Pressure (CPAP/APAP) setting and device for the duration of the trial.