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First week
#1
I finally have a machine (Resmed autoset 10, Dreamwear nasal mask), and went through the first week. I know this is early.

The main reason I needed CPAP was because oxygen (spO2) levels dropped during the night several times to ~80%. I didn't have a proper study done to see why this was.
After the first week, it seems the oxygen problems are gone. My oxygen level stays above 90% all night.  Lolabove

But, I'm waking up every two hours, and have a hard time falling back asleep. I'm not totally sure why I wake up. And I didn't record the exact times to correlate this with sleepyhead data. (because measurement will change the data in this case....) In some cases I seem to wake up with air coming out my mouth. I tried to tape my mouth shut, but I still woke up every two hours. (general leak levels are low. The Resmed does not complain, though you can see leakage in Sleepyhead)

I could post my sleepyhead data, but it is pretty useless, because you can't tell when I'm awake or asleep.

One question I have is this: in some cases, when I wake up, the machine is giving me "high" pressure (for me, but it is only 8-10 cm H2O). I then have a hard time falling back asleep, because I have a hard time breathing out. What I started doing is turn the Resmed off and on (hit button twice) to get ramp up again. Is there anything else I could do?

I think I'll also switch to full face mask. 

Oxygen is good, but so is sleeping  Cool
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#2
Posting the charts is useful because we can not only see the causes of sleep disruption and when the breaks occur, but we can see all the machine settings as well. Are you using EPR? If you're not having a lot of events we could coach you in some alternative settings that might alleviate your need to reset the machine for ramp.
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#3
Here is some of sleepyheads data - from yesterday. I had a hard time falling asleep, and woke up many times. The times where the
pressure resets to ramp-up are some of those. I also took off the masking tape in the middle of the night (not sure why...I think I felt like
I couldn't breathe, but exact memory of that event is gone)

   
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#4
Great chart!  Now we can see your settings are 5-12 with EPR and Ramp are off.  Events are mainly CA which is not unexpected for disrupted sleep. You were disrupted by the machine pressure increasing above 9 cm and some mask leaks. It is hard to tell why pressure is increasing, but snores and flow limits are not to bad in the statistics. 

Since obstructive events are non-existant and your sleep is disrupted, I don't see any reason you can't limit pressure to a range of 5-9 and perhaps use EPR at 1 for comfort.  We can always revisit this if you do start to have more events, but for now, getting a good comfortable night of sleep is the ticket.

[Image: attachment.php?aid=3851]
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#5
Thank you for the quick reply!
I wonder why sleepyhead says Ramp is off, even though I have ramp set to "Auto".
I didn't see the EPR setting. Cool - almost like a BiPAP.
As you say, the CA events could easily be while "half awake/half asleep". I feel as if when in that state I "forget to take a breath", then the machine gets all worried, ramps up pressure and wakes me up.
I might try EPR=1 and 5-9. Thank you.
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#6
OK, I'm on my fourth week. I'm getting used to my mask, I think. I haven't changed any of the settings, other than EPR=1, which helped a lot! (I want to meet my doctor before I start messing with the settings. For now, I still trust him... )
Tomorrow I'm meeting my doctor for the first time after I got my machine. I used it every night other than one camping trip!

Overall, I'm very happy. SpO2 levels are always above 90%. I still wake up a bit at night, but much less than at the beginning - maybe 1-2 times a night.
There seem to be some CA episodes, but it is unclear to me if one should worry about those.
Thus, some episodes seem to be associated with an increase in SpO2 - I seem to take several deep breaths, and then I don't inhale for a long time.
Many CA episodes are also associated with times I'm awake or dozing/falling asleep. Thus in the first image below, Oct 9, I woke up at 6, and I'm not sure if I fell back asleep.

Here are my last two days. Should I post more?

[Image: Re8H9As.png]

[Image: sTyY8bO.png]

Just a reminder, this is what my SpO2 looked like before:
[Image: attachment.php?aid=3609]
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#7
This looks like a great start. You can pretty much discount the CA during periods of sleep disruption which makes your AHI quite low. Your results look great and no changes are needed, however it looks like a minimum APAP pressure at 6.0 is likely to be where you end up. As you can see your median pressure is near 7 cm anyway. I think you will settle right into this and have no problems. SpO2 data is good, no problems at all.
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