AHI variability

I have been using a ResMed 10 for about 2.5 months. Generally, I feel rested and have very little issue with my pillow mask. My AHI numbers tend to average around 2 or a little less. My question relates to the past two nights. On April 15th, I had an AHI of 0.3, and virtually no events of note. On April 16, with no changes to my setup, or sleep time, my AHI was 3.1, despite feeling like I slept OK. ,This was my event summary. Anything I should be concerned about? Why would there be such a difference between the two nights. I am nt especially tired during the day, but just wondering if there is some problem lurking.

April 16 - AHI of 3.1

Cheyne Stokes Respiration (CSR)
5.19%
Large Leak (LL)
0.23%
Clear Airway (CA)
0.79
Obstructive Apnea (OA)
1.05
Unclassified Apnea (UA)
0.00
Hypopnea (H)
1.18
RERA (RE)
0.79

Here were the April 15th numbers AHI of 0.3

Cheyne Stokes Respiration (CSR)
0.00%
Large Leak (LL)
0.04%
Clear Airway (CA)
0.26
Obstructive Apnea (OA)
0.00
Unclassified Apnea (UA)
0.00
Hypopnea (H)
0.13
RERA (RE)
0.00

rojcycleman wrote: ↑

Thu Apr 17, 2025 8:42 am

AHI of 0.3
AHI was 3.1

Statistically insignificant.

rojcycleman wrote: ↑

Thu Apr 17, 2025 8:42 am

Cheyne Stokes Respiration (CSR)
5.19%
Large Leak (LL)
0.23%

Need a closeup Oscar or a SleepHQ, but might have been a little CSDB triggered by leaks.

I've been on for about 3 months and my AHI was always between 0 and about 0.6 then all of a sudden last week it jumped up over 1 as high as 1.8 which I know is still nothing, but the sudden change bothered me. I seemed to remember adjusting my straps looser because I thought they were too tight, so I tightened them again and the AHI went back down. I think it was leaking more and that was making it think my apneas had increased. I can't verify that because the stupid reports don't show the leak in the record any more, only when I first look at it in the morning.

I remember feeling the air leaking so pretty sure that's what was going on. I guess I could test it, loosen it up again and see if the AHI goes back up.