Go on YouTube as well. tons of videos, including ones that show you how to get into the settings to dial down the maximum pressure, so that when it hits its maximum pressure, after ramp up, it won’t be as high as it normally would go. Ask your doctor if it’s OK, but for me my philosophy is I would rather be able to wear that mask for 5+ hours a night than 0 hours a night. And with the downloadable apps, it’ll send the info to your phone each day, showing you how many apnea’s you have each night with mask, etc, and if the apnea numbers are super low to negligible, with the dialed down setting of max pressure, then you’ll know, you’re OK. That worked for me. Lastly, as others have said, program in a long ramp up time. I do a 30 minute ramp up time, with the idea that I’ll be asleep by the time the thing starts ramping up and blowing air in my nose, rather than an earlier ramp up time where I find myself struggling for an hour or two to fall asleep. And then, when I do wake up in the middle of the night, I just turned the machine off, and then turn it back on to get a fresh 30 minute ramp up time. My philosophy is I would rather get some mileage than no mileage on the machine.