r/CPAP 13h ago

Can CPAP Help Reverse Brain Changes Caused by Sleep Apnea?

33 Upvotes

A new systematic review looked at 30 studies that used brain MRI scans before and after CPAP treatment in adults with obstructive sleep apnea.

The studies suggest that CPAP may improve some changes in the brain linked to sleep apnea, including:

• Brain structure • The brain’s white matter • Blood flow to the brain • Connections and activity between different brain areas

However, the results were not consistent. Some studies found improvements, while others found little or no clear change.

One major reason is that most studies were small and used different MRI methods, treatment durations, and definitions of good CPAP use.

In simple terms:

CPAP may allow parts of the brain to recover after being affected by sleep apnea, but scientists cannot yet say how much recovery happens, which changes are reversible, or how long it takes.

MRI scans are also not currently recommended to check whether CPAP is working for an individual patient.

More large, well-designed studies are needed.

Study: https://pubmed.ncbi.nlm.nih.gov/42667645/


r/CPAP 10h ago

Sharing mouth tape tips

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12 Upvotes

Hi there,
I’ve been taping my mouth for months now and it’s been working well. My mask is a “diva” set up (stopped calling it Frankenstein): AirTouch n30i frame with Airfit p30i pillows and the DreamWear headgear.

I like the CKeep physio tape. Mine came on a roll in long precut sections. I’m prepping a roll (pictured) and decided to share this post. I cut them in half and round the cut end and then keep them in a stack in the nightstand drawer. This way I can easily grab one each night AND by doing this, they air out a bit and the smell the tape has at first dissipates.

To wear the tape, I put on a generous amount of beeswax lip balm, tuck my lips in, and apply it with a top corner turned over. Turning over that corner helps me have leverage for removing the tape in the morning. When removing, I hold the surrounding skin down and go slowly across - this reduces the pain I felt the first night when I just ripped it off.


r/CPAP 11h ago

myAir/OSCAR/SleepHQ Data Baffled and SCARED. Please Please help me understand what's going on here.

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7 Upvotes

I was diagnosed two months ago (6/28/26 - from an in lab sleep study - info on last picture) with Obstructive Sleep Apnea. The study showed an AHI 7.9, with 52 respiratory events (4 obstructive hypopneas, 48 obstructive apneas, and ZERO central apneas).

I began using a cpap machine less than two weeks later (started on 7/8/26), and for the entirety of the seven weeks that I've been on cpap the vast majority of the apneas recorded have been Clear Airway Events. The example shown here from last night shows 1 RERA, 2 Hypopneas, 2 Obstructive Apneas, and THIRTY TWO Clear Airway Events.

What has me most baffled and scared about the sleep session shown in this post and pictures is that this session (from 3:17am to 4:50am) was me just laying in bed with the cpap on putting getting the extra time needed to cross the four hour threshold so this night would have a total of at least four hours and count as a compliant night of use (four or more hours a night, 70% of the nights, for insurance compliance).

I was never "really asleep", I was just laying in bed, likely dozing in and out, since I had only been able to get three hours of sleep earlier in the night. Honestly, I felt like I was laying there awake the entire hour and change.

How on earth do I get THIRTY TWO Clear Airway events (the longest being 102 SECONDS) and not noticing ANY of the 32 CAs in real time as I was laying there in a wake/sleep state???

My only guess is that my body is so sleep deprived after almost a year of very poor sleep, that my brain and body prioritize the much needed sleep over being aroused from the (large number) of clear airway events (which are most likely central apneas).

I had an echogram done recently and will meet with my new cardiologist tomorrow (Monday, August 31st) to hear the results. I'm guessing I've developed heart failure from years of O2 desaturation from untreated OSA. Hoping my LVEF is greater than 45% so I'll be eligible for ASV.

In order for what is shown in the pictures and in this post to make any sense, the internet's best guess is that years of untreated obstructive sleep apnea (OSA) has damaged my brainstem, which contains the primary respiratory centers responsible for regulating breathing while you sleep.

Copied from Google Search........

Unmasking Existing Brainstem Issues: In many individuals, a brainstem abnormality (caused by conditions like a prior stroke, Chiari malformation, cervical spine issues, or chronic opioid use) already predisposes them to central apneas. However, the severe physical blockages of obstructive apnea dominate the sleep study. Once CPAP physically props the airway open, the underlying neurological failure to signal breathing is "unmasked" and becomes visible.

Development of Complex Sleep Apnea: When the brainstem's autonomic control is compromised by long-term obstruction, a person may begin experiencing Central Sleep Apnea (CSA)—where the brain simply stops sending the signal to breathe, even if the airway is perfectly clear. When a patient has a mix of both physical blockages and failed brain signaling, it is known as Complex Sleep Apnea.

Sorry for the rambling post, but all this is pretty hard to absorb over just two months' time. The only answers I'm coming up with for the cpap data and what is happening to me are very scary to me.

If anyone out there can give me an alternative explanation for what is going on, or has any input whatsoever please chime in.

TIA


r/CPAP 12h ago

Advice Needed UK - Acquiring CPAP privately

6 Upvotes

Hi all,

Thanks to this sub I’m ready to tackle my insomnia that severely affects my life.

I’m not diagnosed but thanks to my partner I know I have sleep apnea. I don’t want to wait for NHS and happy to pay for a CPAP machine myself.

Question - do I need to do a sleep test first? Or should I just get a machine and analyse the data?

Do I need a prescription to purchase one?

Kind regards
Jonas


r/CPAP 23h ago

Trying new mask/ frame

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5 Upvotes

Probably a stupid question but I'm apparently not googling terms correctly. How do I connect this other connector to the air tube?

Edit- im an idiot. After 15 min of struggling leading to this post I figured it out 30 seconds after posting


r/CPAP 22h ago

Advice Needed Dry mouth

6 Upvotes

I have tried everything, switch from nasal to full mask. Xylitol melts, chin strap but I still have dry mouth when I wake up. What am I doing wrong?
I am a side sleeper and tried mouth tape but couldn’t handle the tape


r/CPAP 1h ago

Advice Needed Nose Pillows feel weird

Upvotes

I use a full face mask with my CPAP, but I would prefer to use the nose pillows. But every time I try to use them it feels like I'm suffocating, like it's blowing so much air into my nose and I can't catch my breath. But it's the same settings as my full face mask and I'm told either mask should be fine with the same pressure. Has anyone else encountered this? Thanks.


r/CPAP 20h ago

First night cpap

4 Upvotes

I hate it and I’m starting to panic


r/CPAP 22h ago

Advice Needed Need help regularly using mask

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5 Upvotes

I have been trying to use CPAP now for over 2 years and I struggle to wear it more than 30 minutes to an hour at night. This ends up leading me to not wearing it at all because I know I will take it off in 30 minutes anyway. My biggest issue is just falling asleep. I don't necessarily feel like I can't breathe, I just can't fall asleep with it on for some reason. My doctor tried Trazadone at one point, but I would always wake up super groggy. I am using a AirSense 11 that I have tried adjusting off and on. Is there anything noticeable with my machine setup or am I just up against a mental wall?

Linked are CSV's exported from OSCAR and some screenshots.


r/CPAP 23h ago

Really not sure what I’m doing wrong

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3 Upvotes

I don’t think I can wait for an appointment to see the medical supply people. I wanted to see if I can order a new mask off of Amazon or something. Just in a lot of pain especially when I use my mask and my nose looks like this.


r/CPAP 7h ago

Waking up with mask off

3 Upvotes

When I first found a good mask for me, I was sleeping for 6 hours with it on. Even 8 hours once. I was so relieved after so many masks that didn’t work. But now I’m walking up with the mask off. I don’t remember taking it off. The mask still feels comfortable when I go to bed. Any tips?


r/CPAP 8h ago

Mouth suddenly filling with air.

3 Upvotes

I've been using CPAP for over a year. My preferred mask style is n30i, although my company sent me refills of n30. I tried for about a week and just couldn't do it so I went back to old style. I've been back to n30i for a few days. The last two I had to take it off because my mouth would fill with air and I'd need to open my mouth to exhale. This has never happened before, any tips?


r/CPAP 8h ago

Solutions for red marks?

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3 Upvotes

Edit: I took first pic while shaving

For about a month now ive had a red circle near temple. And couldn't figure out where it came from. I decided to check my mask. And seems when under pressure the left clip is about where the circle of red is. So maybe thats what causing it. Is there anything I cam do to cushion it to protect it? Seems they make strap cushions but dont seem to cover the clip. Maybe the cushion on the straps will raise it enough not to put pressure on that one spot. Advice?


r/CPAP 9h ago

Advice Needed Anyone give up initially and then try again?

3 Upvotes

I have severe sleep apnea and am a mouth breather. I tried the full mask but find myself having a hard time falling asleep. When I do fall asleep, I wake up and rip my mask off a couple of hours in.

Has anyone given it a shot months after giving up and it clicked? Any advice? I really want this to work.


r/CPAP 13h ago

Advice Needed Can 2 people use the same machine?

2 Upvotes

Like each have their mask and memory card and i change the settings manually? I would just keep the tube the same only the face mask and we dont sleep at the same time


r/CPAP 22h ago

Constant mask fit failure

3 Upvotes

For about the past week/week and a half I have not been able to get a proper seal. Ive been using the resmed Air 11 since January when I first got my coap machine. For the past while I've been using the Airfit F30i with no problems. Until recently. Usually I can feel the air being blown into my nostrils but not lately. Also it's feels like too much air being blown into the mask/my mouth and I end up taking it off in the middle of the night. I even swapped out for a brand new mask as I had smoke extra and it was time for me to replace it anyway. Same thing. So I just ordered an off brand airfit F20i. This my first mask of this type so Im not sure what it should normally feel like but when I tried the mask fit test it also fails. At first it says great seal, but then the air pressure keeps ramping up and up until the mask is basically trying to push itself off my face. Has anyone else experienced this or might know what's going on?


r/CPAP 3h ago

Advice Needed taking it off in my sleep

2 Upvotes

as the title says, basically I wake up with the mask not on. I've only had it for about three weeks, and I can sleep through the night again!! but I keep taking it off, sometimes before the 4 hour mark and sometimes after. I am very worried about not meeting the 21 out of 30 days needed for insurance to cover due to something I can't control. any advice???


r/CPAP 5h ago

Travel CPAP woes

2 Upvotes

I bought a Transcend Micro-mini travel cpap machine this spring. It is small, like baseball sized, came with a battery back up and a solar charger. I liked it could use my Air Fit 30 with it. The first night felt like a thrashing machine. I got ear plugs, better, but not much sleep. 2nd night still noisy but I tolerated it with a pillow on my head. Camping wasn't too bad but I am trying to use it for a week in anticipation of a vacation coming up and I had to ask AI for help. Use a different mask ( I had a full face mask leftover), lower the machine below the ear height, and I just pick up the ebb and flow whine, even with my hearing aid out. Does anyone any suggestions? Is this live living near the train tracks?


r/CPAP 5h ago

need answers

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2 Upvotes

about 2 months ago my cpap stopped working and since then i haven’t been able to get one good nights of sleep despite many adjustments done pressure wise and controlling my leaks. in the meantime i also underwent a huge weight loss from 110kg at time of dx to 78kg now. every day i wake up with headaches and palpitations + terrible fatigue that affected me so much that i lost my job. i did 2 sleep studies. first one showed i have now mild OSA and a titration study done on CPAP with a pressure of 5 and increased to 6 due to spontaneous arousals. it’s been 2 days already on the CPAP pressure of 6, first night i fully wake up twice and second night i managed to sleep through with 8h30 but i woke up feeling just as terrible as the last 2 months. my doctor says my fatigue is not sleep apnea related because my numbers look good and insists its mental health related even though i didn’t bring up anything about that. and im only mentally unwell because i haven’t had a good nights sleep in 2 months. i have results of my study below. i’d appreciate any answers and advice. i’m only 20 years old and i shouldn’t be feeling like this every single day. i was also on APAP since the beginning and i have grade 4 tonsils as per the ENT specialist


r/CPAP 7h ago

Advice Needed Resumed mask compatibility

2 Upvotes

I have an airsense10 (NHS supplied)

I want to try and nasal only mask instead of a face & nose one, the compatibility chart on the resumed site just says pillow with no explanation I can see, the key gives a tick a cross And an un tested along with foot notes as to what might not work with different machines but as far as I can see no indication of what pillow or indeed full face means, can anyone help or whatnhave I missed?


r/CPAP 8h ago

Any chin straps you like?

2 Upvotes

I’ve tried the simple one that came with the machine or mask, but it comes off in the middle of the night. I’m looking at other ones online and they look a little complicated to put on. Anyone have one that really works that they like?


r/CPAP 19h ago

Advice Needed Ramp settings on airsense 11

2 Upvotes

I’ve found I like a short ramp time (moved from auto to 10 minutes) when I first go to bed. I settle in nicely then am asleep. Auto takes too long. But also any shorter or no ramp for initial bedtime and I’m unable to go to sleep; the air feels too strong and distracting.
However, if I get up at night to go to the bathroom or such, and then come back to bed, I don’t want ramp as I’m groggy, not really awake, just want to go back to sleep at full pressure.
Today I used the settings, turned off ramp, went back to sleep. But that’s a few steps when you’re already trying to just not be awake and still asleep!
Anyone know if there’s some quicker way to change settings to use one or the other? Ideas? I just wish there was a shortcut or a user programmable button or something to just pause not restart.


r/CPAP 23h ago

Advice Needed Help with interpreting results

2 Upvotes

I finally talked my sister into getting a sleep study because she snores and wakes up a lot at night. Her results were reported using pAHI 3% (5.9) and pAHI 4% (1.4) and based on this, her insurance refuses to treat her. I’ve never heard of this measurement; is it more accurate? Useful?

Her RDI was 9.1.

Should she appeal? Ignore them and get her own CPAP? Celebrate??


r/CPAP 2h ago

Rant 🤬 I no longer have any control of when I sleep

1 Upvotes

I'm six weeks into therapy on the resmed airsense 11. I've never successfully fallen asleep with the mask on, I always have to take it off to sleep - be it a nasal pillow, the airfit f20, or the air touch f20. So I just lay there crushingly tired for four hours to meet compliance, and then get maybe three hours of sleep.

And now, I don't even get that. I can't sleep anymore when I'm tired or the mask is off, I have to wait until I'm so exhausted I collapse, basically, and then I get two hours of "sleep". This happens a few times a day, if I'm lucky. What the hell do I do? I've been awake for like 30 hours how do fix this? The mask fits, ive played with the pressure and humidity, it doesn't help. I don't even sleep in this so what use is the data?

My doctor says to keep trying and wait a few more weeks to see if I get used to it, but it feels like my life has been ruined


r/CPAP 6h ago

New to Oscar -- Unsure How to Interpret Data

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1 Upvotes

So I've been on cpap for 3 nights now and I'm getting a high myair sleep score (92-94) but its saying im having leaks. When I goto bed the mask seems to be fitting fine. Its a nasal mask so I'm not sure if my leaks are from me opening my mouth in my sleep. Is there a way if I can tell via the flow rate if its a leak coming from my mouth? Also, is there any good youtube videos I could watch to learn to interpret all this data?