Pressure Question

Hi everyone, I was just wondering if you guys prefer low or high pressure settings?

I’m very new to this so I’m not sure if it’s really a preference however I was diagnosed about three weeks ago with moderate from a home study and I got my machine and it’s set from 5 to 20.

I’ve been looking at it after I sleep and it seems the average is six but I do feel like as I’m falling asleep, I struggle a little bit to breathe with it at 5. But clearly once I’m asleep it seems like it’s okay?

Not sure If i should bring up wanting it higher to my doctor if it’s working at 6. Thanks!