I'm fairly new to OSCAR and was hoping someone more experienced could take a look at my data and offer suggestions.
I've been using a ResMed AirSense 11 AutoSet with an AirFit N30i mask. I tried CPAP several years ago but couldn't tolerate it. Several months later, I had surgery to correct a deviated septum. I was also fitted for a dental device, which I used for around two years. I tested pillow masks and found that they provide good therapy, but my nose is too sensitive. They caused irritation and cuts on my nose
I went back to my ENT for a follow-up earlier this year because I was still having sleep issues. He recommended trying CPAP again and also testing combination therapy (CPAP + dental device).
My settings are:
- Pressure: 5–20
- EPR: 2, Full Time
- Humidity: 4
- Tube temperature: 84°F
I was originally diagnosed with mild obstructive sleep apnea. I also use a mandibular advancement device (MAD) every night along with my CPAP. The MAD hasn't been adjusted since I started combination therapy.
The frustrating part is that I don't seem to be feeling any better since starting CPAP again three months ago.
I'm consistently getting 8–9 hours of usage, but I still:
- Wake up multiple times during the night.
- Often wake around 4–5 AM and stay awake for 30–60 minutes before falling back asleep.
- Feel tired and sleepy in the morning.
- Experience occasional morning headaches and brain fog.
- Sometimes need a nap during the day.
I've noticed quite a few clear-airway events showing up in my data, which is something I'm trying to understand.
Here are two recent nights:
**October 30**
- AHI: 4.94
- Clear-airway index: 4.44
- Obstructive index: 0.12
- 95% pressure: 6.70
- 95% leak: 6.0
**October 31**
- AHI: 1.87
- Clear-airway index: 1.76
- Obstructive index: 0
- 95% pressure: 6.82
- 95% leak: 2.4
MyAir has also been showing around 38 central events per night over the past week.
I did an overnight oxygen recording while using CPAP, and my average oxygen was 96%, with a low of 90% and no time below 90%.
One thing I noticed is that I tightened my N30i mask a little more last night, and it seemed to help somewhat. My leak numbers were lower, but I still had clear-airway events.
I'm wondering if anyone sees anything interesting in these OSCAR screenshots.
A few things I'd love some feedback on:
- Do the clear-airway events look unusual?
- Do my pressure settings look reasonable?
- Is EPR 2 something worth looking into?
- Does anything stand out that might explain why I'm waking up so much?
I'm also following up with my sleep doctors, but I'd really appreciate some additional eyes on my data.
Thanks!


