Anyone has experience with sleep apnea/very stuffed noise to the point where you cant breathe?

My dad had a (big) snoring problem and eventually after like 20 years started using a CPAP machine, which helped him.

I knew someone with COPD that slept with an oxygen tank, isn't that an option since his levels get low?

There is a lot of medical terms for the average joe to make most sense of it, which makes more sense to try any of many medical forums.

And offcourse it's an easy thing to say but obvious, exercise..

no alcohol
no pillow
practice sleeping with you head looking up. the way you position someones head when you give them cpr. it ensures air passages are as open as possible.

Your Dad should try the dairy-free diet. I suffer from sinusitis and I have no idea what the cause of it is. I know I'm allergic to something, but never got tested to see what it is. But, when I gave up dairy, the problem lessened. Whenever I forget and have real milk or cheese, I get the headaches and the night time nasal drip and all that horrible stuff. I say thank God for vegans because there are plenty of dairy free options around now, so doesn't feel like I've given up anything.

In my case, I'm not allergic to dairy, it's just common knowledge that dairy thickens mucous making any of these conditions worse than they need to be. It won't cure him, but he should try it for a couple of weeks and see if things get easier for him.

U said "we have recuperation at home, which brings in a ton of dust,." The dust is most likely the reason why his nose is so stuffy. U might try a "neti pot" which cleans out the nasal passages and helps people breath better. This is what Wiki says: Nasal irrigation is a personal hygiene practice in which the nasal cavity is washed to flush out mucus and debris from the nose and sinuses, in order to enhance nasal breathing. Nasal irrigation can also refer to the use of saline nasal spray or nebulizers to moisten the mucous membranes. Wikipedia
Hope u find a solution for him soon! Let us know how he is doing.

A friend of mine had similar issues.

He cut out processed foods (ones with preservatives and such).

After 2 weeks, his nose started dripping like crazy. All sorts of **** came out for a day or 2.

He feels much better now, and happily avoids processed foods.

Hope this helps.

Has your dad done a rhinoscopy with the microcamera thing? I have a deviated septum too, and some of the turbines are elarged in a way that is not visible with the normal tool, and whenever the temperature falls below 20-25C my nose starts getting very stuffed too. A friend of mine with the same sumptoms had a surgery to shrink the turbines and straighten the septum and it changed his life, I plan on doing it too. Of course, it's best to consult a doctor who will actually do the posterior rhinoscopy correctly.

Do you already have quality hepa air filters in his room? Is there any chance of mold in your home? He could try sleeping in a different room to see if his allergies are any better. You might try switching to everything fragrance-free (not unscented), laundry detergent, shampoo, deodorant, etc. Natural products aren't necessarily fragrance-free. It sounds like he needs to go to more doctors to find the root of the problem, as frustrating and time-consuming as that is.

First of all, I like that you care so much. I'm also impressed that people here can offer good advice on this subject.

I can't really offer good advice. I do suffer from a stuffed nose which at best allows partial air flow. This comes from allergy, most likely, since I'm allergic to a lot of stuff, but I never tried to pinpoint the cause, and at this point in life I'm quite used to it. I sleep well, breathing through my mouth when I can't breath through my nose. (I do snore when the situation is particularly bad, but not normally, far as I know.) The only times I really have trouble sleeping is during allergy seasons, when my nose runs during the night.

I think I remember that sleeping with a surgical mask (COVID mask) helped a little at some point when I tried it, though obviously anything that you put on your head adds to inconveience and so disturbs sleep.

I imagine that part of the problem with any of the solutions you mentioned is that he's not used to them. Anything you're not used to will bother you through the night, and it takes time to get used to new things. It's possible that if he just persists with something that helped, he will eventually get used to it. For example:

He tried sleeping in 45 degree angle, he slept great for one night and then other nights it didnt work at all.

It's possible that it helped, but for the first day he was just tired enough that it didn't bother him, and then, when he was feeling less tired, it bothered him because he's not used to it.

But since he was diagnosed with central sleep apnea, I'm not sure if any measures will really solve his problem.

I don't think it has been mentioned, so...is your father overweight by any chance? That's like, one of the (if not the) main cause of sleep apnea.
Visiting a gastroenterologist (if you haven't already) is a must as well. Gastroesophageal reflux is often a cause.

My mother had a client who couldn't sleep much as well ~1-2 hours a night. Bad health obviously followed. He learned to meditate for a few hours, so his mind and body can actually rest. But sounds hard to convince your father? Not sure if you can force some professional courses onto him.
But does not solve the nose problem at all.

Ever tried some vacation, or moving out for a week, hotel with totally different food, different air.

Did you measure the humidity at home? Especially in winter it's pretty bad for me as well <20-25% sometimes, spring was also <30%. Even with air humidifiers.
40% - max. 60% would be good. Too much humidity could indicate fungus and spores.
To little or to much(danger of spores) will be bad for the nose.

Not sure where you live, 8 months ago was winter as well.

My advice would be
Sleeping with your head up without Pillow.
Clean the room hes sleeping in .
He should make some Gymnastic or Yoga (Not much just a little bit stretching here and there) .(Morning/Evening)
And hes probably stressed a massage on the neck with an relaxed atmosphere should help too .
He has probably some pinched nerves .
It could take 1-3weeks or 3-6months until it goes away
Im no expert but his symptoms so far indicate it for me atleast .
I would advise against too much sugary drinks,Energy drinks,Alcohol.
And he shouldnt sleep with his smartphone close by thats connected Wifi.

My dad uses CPAP machine, but other than that he doesn't do anything for it. He's not super healthy.
Exercise + medication, basically what everyone else is suggesting. If your dad smokes or drinks it would help if he stops.

You could try looking into allergies. There is a simple blood test called RAST or a skin test that can check for allergies and may give you more of an idea of what is going on with his nasal issues.

You mentioned he had allergy tests done. Do you know what kind of tests they were?
My brother had similar problems and allergy tests came up fine but he was still getting relief from Antihistamines so he went to a specialist that ended up finding he had allergies not to one thing but to a combination of some specific pollen and some other thing (I can't remember what it was but it was something food related) so the tests he had done before couldn't isolate the cause.

Long story short, did your dad try any form of Antihistamines?

Also, not to cast aspersion on the medical profession, but some doctors can be very focused on the little part of the machine in front of them, so seeking second and third advice might produce different results. It took years for my sister to be correctly diagnosed with a syndrome that causes her asthma and nasal polyps. She now uses intranasal corticoids and can breathe all through the night, which wasn't always the case.

When I did Keto diet and lost weight, the first thing I noticed is that I slept better and stopped snoring.
I have since gained half the weight back and am getting occasional complaints of my snoring.

Just an thought as weight does affect sleep and snoring.

I've read through all the comments so far, and saw that nobody has asked suggested this.
I did have a couple questions though

Does the blockage usually also constitute a runny nose?
Is there any mucus that he can actually feel in his nose? Or is it stuffiness further back?
As a follow on: does his voice sound 'stuffy'?
And lastly: does he feel any 'pressure' or 'tightness' in his eyes/ face?

One suggestion I can give would be warm water vapor, a natural way to do this is just taking a warm shower, and breathing through the nose normally which will bring warm water vapor through the nasal passage.
So do you happen to know if the blockage get's any better after he has a warm shower?
If it does, then you could try getting a pot of steamy water and have him lean over it for short time periods to breathe it in. I would also suggest he drapes a towel over his head and the pot during this. If this does help, it is most likeley a temporary fix, but at least it gives more information for what it could be. As if warm vapor helps with the problem then it is likeley inflamation/ swelling somewhere in the nasal passage. My main suspicion is sinuses.

The other important thing is to drink a lot of water/ fluids. Is he getting enough water to drink each day?

Sorry for not having many tips, but it seems like you've already tried so much. I hope you can figure out something which helps.

I had some problems with breathing when trying to go to sleep.
So far it turns out its caused by Gastroesophageal reflux disease.
I know i cannot eat some food, especially milk in all shapes and forms and most of milk products. Also coffee.
Its not as severe as you posted but i know what is it like trying to catch a breath while you cant.
I had a bad cough for like 20 years, also related to milk and milk related products.
That cough was many times started by certain smell or some specific strong scents. Or it started by no reason at all, or i couldnt find and trigger.
Good diagnose is a key.
There i was, thinking im eating decent food.

Maybe try to get rid of milk for few weeks ? It took me some time to see the difference after i stopped using milk and co.
And the doctor said it wasnt allergy. Intolerance ? Dunno.

Asthma ?

Hi, I hope you get to the bottom of the problem!

Sounds like traditional medicine is failing you. Maybe search out a good, reputable naturopathic doctor. TCM and acupuncture might also be helpful.