Go to Youtube and search up Resmed airsense 10. There are apnea DR's that show how to enter the clinical menu and what each feature is for. Hopefully you have a humidifier as I find that option most helpful for stuffy nose and dry mouth. If you get woken up from the machine running high pressure this is where being able to adjust the limits yourself gives immediate ability to validate and correct issues. Point is not to wake up and not to have a high AHI. Achieve those two things and your in heaven. It will take trial and error to get there but oh its worth it! Mask type, size, adjustment of limits, ERP, ramp, all of it matters. You do need to find your personal settings that satisfy it. It's work no doubt. Being able to get into the menu and determine it yourself will save you time. money and sleepless nights... Go to youtube.