Hi drjsparker,
As JNK and Katie has already mentioned, your leak rate spikes up way to high. If you're using the Swift FX then I would either check the pillow size you are using or try to understand if you keep rolling over to dislodge the pillows to create those large spikes. It's not a continually high leak rate just spikes so it suggests you're doing something to cause these leak rates, e.g. pillows are falling out of your nostrils possibly when you move your head or when you roll over. When your leak rate spikes you appear to have a cluster of Unknown Apneas.
It could also be mouth breathing like you suggest if you're waking up and you're mimicking that your a fish blowing bubbles (that happens to me now and again). You might want to see if you can get a chin strap. Usually blowing bubbles for me either means I have a very full stomach and that's making it uncomfortable and rather than breathing the air I'm trying to swallow the air and it's filling up my stomach and getting to a point where I can't take the pressure. Or that your pressure is too high, be careful on changing those numbers.
KatieW wrote:The Yellow flags say "unknown apneas"--not sure what that means, as this is a new definition. They do seem related to your leaks though.
I'm not sure what these are either, this is the first time I've seen Unknown Apneas. I'm guessing the machine is noticing you're stopping breathing for that time but it's not been able to differentiate between what type of Apnea it is. It probably senses there's no reduction in flow (obstructive) and likewise it doesn't think it's a Central Apnea but it does know you've stopped breathing.
KatieW wrote:Edited to add: I found a definition for Unknown Apneas: an apnea during which a leak higher than 30 liters/minute occurs, precluding accurate determination of whether the apnea is obstructive or central.
Aha, that will be why then, you have to get your leak rate down to a somewhat lower and consistent rate.
It also looks like your Min pressure is set too low, you seem to be fluctuating quite a lot between 9cm and 12cm, this is quite a difference, increasing the Min might help a little bit but I would first try and address the leak rate otherwise by increasing the pressure could mean that you are going to get more leaks if you're not careful.