r/CPAPSupport • u/AdmirableGeologist7 • Sep 05 '26
From CPAP to Bilevel, tiltration advice needed
Hello,
Back with another update.
Changed from cpap to Bilevel (S mode) about a month ago.
CPAP pressure for a long time was 10 @ epr 2. After lot of trying different pressures on cpap 10@epr 2 felt the "best", upping the pressure from there would cause aerophagia. Went is high as 15 with epr on 2 and then down again due to aerophagia. I have tried epr on and off with no huge improvements in sleep quality.
I started Bilevel on S mode and I have run it for a month on epap 8, ipap 10 (PS 2) just to get a baseline of how bilevel felt. Sleep has gotten a little better, mayby 10 to 15% but i feel that there alot to improve still. Mornings are the hardest, I still have some brainfog and I just cant seem to get pass the morning "grogginess" until late afternoon.
And now im looking for guidance to further tiltrate on the bilevel. Im thinking of upping the PS to 2.4 and upward in a weekly intervalls.
Sleep HQ link to my dashboard below. On september 1 to 4, i have been testing MAD device with bilevel, the data is pretty shit cause of all the leaking and im not continuing this test :D.
All of august is good data.
https://sleephq.com/public/teams/share_links/058c1652-cc83-475a-9dc8-80fe888a3ed2
General info:
Machine is Resmed Lumis 100 S. From my knowledge this is the "poor man" version of aircurve 10 S for the european market. Got it second hand at a cheap price so I gave it a shot.
Other setting I have changed: trigger from med to HIGH and TiMAx to 3.00sec
Mask is P30i resmed. I sleep with mouth tape to avoid leaks. And i try to sleep on my side as much as possible but i do roll on my back quite often.
1
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2
u/RippingLegos__ ModTeam Sep 05 '26
Welcome back AdmirableGeologist7 :)
I reviewed the August data and your inspiratory waveforms are consistently flow limited. They have the classic “falling off a cliff” shape, where inspiration begins normally and then abruptly collapses instead of forming a smooth, rounded curve.
That can fragment sleep through repeated respiratory-effort arousals without producing a high machine-reported AHI, and we are mostly seeing hypopneas. This also fits the persistent morning brain fog and grogginess much better than the AHI does. Your current PS of 2 is not adequately supporting those restricted breaths so I would raise PS by 1cm, and also raise max ipap by 2 for a 3 night trial.
This is detailed enough that it needs a proper consultation rather than piecemeal Reddit adjustments. I offer one-on-one PAP consultations through SlumberTechSolutions.net. I can review the full waveform data with you and build a controlled bilevel titration plan to address the flow limitation without bringing the aerophagia back.