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The 2 most common causes for increased pressure needs are supine sleeping and REM stage sleep or sometimes a little of both.
Interesting that your first real increase in pressure and clustering comes right around the time frame where we would expect to see the first REM stage but the first REM stage doesn't last nearly 2 hours and doesn't cycle that fast to get that many REM stages in the 2 hours between 11PM and 1AM.
REM does come more frequently and last longer during the wee hours of the morning.

Your machine isn't raising the pressure in response to the centrals....it can't/won't do that but instead it is raising the pressure because it is thinking something related to the airway collapsing is going on.
It's hard to tell just how much the centrals might be related to the times with the higher pressure needs (next time try to get the pressure graph bigger...the bottom graphs are taking up so much room that the top graphs get tiny and I don't know how to fix it...I have ResScan but I don't use it often at this level of detail).

There does seem to be a little bit of pressure correlation though.
I wouldn't be happy with what the doctor has said about the centrals...but that's me. I will pooh pooh off quite a bit of stuff but I couldn't pooh pooh off this many especially since you say you slept solidly and we can't blame them on Sleep/Wake/Junk.

A peak at the sleep studies would hopefully be a big help in figuring out what is going on here.

Hi. Found out a few weeks ago that I had osa. Had tests and I stop breathing 67 times an hour. Am using cpap machine but am suffering with rhinitis very badly. Any tips would be welcome.

Can you start a new thread, with your question?

This thread is resolved for the moment (until I get more information about my original prescription), and you need real support and advice from the excellent oldtimers on the forum (of whom I am not one yet), so please start a new thread so that they can more easily see you!

cheers, Anne

lorraineriese wrote:Hi. Found out a few weeks ago that I had osa. Had tests and I stop breathing 67 times an hour. Am using cpap machine but am suffering with rhinitis very badly. Any tips would be welcome.

Most common cause of the annoying rhinitis is either not enough added humidity or too much added humidity.
Some people need a lot and would love swamp air (that would be me) and others actually like it much drier.
There is no right or wrong and it strictly personal preference and everyone's nasal mucosa are different in what they prefer.

Google "cpap rhinitis" and you will see what I mean.

So...if you aren't using a humidifier...get one and use it.
If you are using a humidifier but at a higher setting... try lowering the humidity setting.
If you are using a humidifier but at a lower setting...try increasing the humidity setting.
If you are using a humidifier but at the middle setting...toss a coin but if going with the general odds...try increase first.

Otherwise for more specific ideas please start a new thread and add your equipment to your profile like I have mine and if you are using the optional heated hose (available on some machines) there may be additional options which might help you but we need to know exactly what you are using and at what settings to be able to give you more definitive ideas.
With a thread of your own you will get more attention that way and won't get lost in this thread where some members may not be following this thread.