@walk4life My sleep medicine doc gave me a target of an AHI of 4 or less as my goal. I'm pretty close to that most of the time now over 5 years later but I still have some bad nights once in awhile. I think that there can be many different reasons for the AHI numbers to jump higher than your normal number. For me, that can be sleeping on my back too much (I'm a side sleeper mostly), nasal congestion, and possible stress or too much activity late in the day. Do you have a routine setup for your sleep schedule? Just wondering if there may be times when you can identify something that might be triggering a higher number.

You might want to scan through related discussions on CPAP numbers to see if anything rings a bell for you. Here is a link to the discussions and posts, including your discussion - https://connect.mayoclinic.org/search/discussions/?search=%20CPAP%20numbers.