New machine and tired!

[rooboy11]

Hi all,

I have sleep apnea and use a CPAP machine - Resmed Airsense Autoset 10 with nasal pillows as mask.

I had this machine/mask on hire from chemist for an extended period and I felt great, woke each morning refreshed. So I recently bought a new machine/mask for myself (the same model/mask as the one I hired), and rang the chemist so I could set up identical settings. However, over the five nights I've used my new machine, I've woken tired, as if I haven't used it. It seems to be running fine, all settings are the same as the hired machine, mask is on when I wake up and hasn't fallen off in the night that I remember. I use a chin strap too and that stays on.

Only thing I've noticed different is that usage hours in sleep report says 4hours 7 minutes each night when I wake when I've actually slept 6-7 hours. Is it possible the machine is turning off? Are there any other settings that may be causing me to wake unrefreshed?? Any help would be greatly appreciated! Just spent a lot of money on new machine and not getting benefit

Cheers, (tired) Roo.

[Pugsy]

Where/who did you buy the new machine from?
Did you verify that it was indeed a new zero hour machine by checking the run hours? Not the therapy hours but the run hours which is in a different section in the menus.

[Julie]

One thing to remember is that machines usually clock from noon to noon, so if you look at last nite's results after noon, you won't get a full picture. If that helps anything.

[Pugsy]

Please clarify something....is it showing 4 hours and 7 minutes each time you have checked it as in stuck on that number or does it vary.

Get SleepyHead
https://sleep.tnet.com/equipment
So that you can see for sure what it is or isn't recording for usage.

[rooboy11]

Hi, thanks for your replies.

I purchased my machine from AussieCPAP (I'm in West Aust.) which is sourced from USA. So, my machine was on US time which would explain the 4 hours 7 minutes (noon to noon). I think the minutes has slightly varied each night. Checked run time it was at zero hours so definitely a new machine.

I've called chemist and been talked through my settings to match what I previously used. I cannot work out why I am still waking tired. Min/max pressure, tube temp etc all the same. Have noticed though that with previous machine I was nearly using all the water from the water chamber in one sleep whereas now I am only using half. Could this imply anything? Any other suggestions.

Roo

[Pugsy]

Water consumption can and will vary a lot from night to night depending on ambient conditions so that in itself doesn't mean much.
Example...if my ambient humidity is fairly high like it might be if it is raining outside and I might have the windows open then I might not use much water at all but if the ambient humidity is rather dry like it might be if I used the furnace or air conditioner then I might use a lot more water and not really change any of the settings on the machine.

Pressures used will also affect water consumption...higher pressures will use up more water.

Leaks...if a person is having a lot of large leaks then more water can be used also.

So check your leak data and check out the ambient humidity itself.

[rooboy11]

Hi Pugsy,

I will make some minor adjustment, leak detections etc and check data. Hopefully get to the bottom of it ...will report back.

Regards, Roo.

[Wulfman...]

Hi, thanks for your replies.

I purchased my machine from AussieCPAP (I'm in West Aust.) which is sourced from USA. So, my machine was on US time which would explain the 4 hours 7 minutes (noon to noon). I think the minutes has slightly varied each night. Checked run time it was at zero hours so definitely a new machine.

I've called chemist and been talked through my settings to match what I previously used. I cannot work out why I am still waking tired. Min/max pressure, tube temp etc all the same. Have noticed though that with previous machine I was nearly using all the water from the water chamber in one sleep whereas now I am only using half. Could this imply anything? Any other suggestions.

Roo

I don't see where you've told us what your pressure settings are.
Have you tried a single/straight pressure? For some folks, using an APAP with ranges or pressures, the changing pressures all night long can disrupt their sleep and leave them feeling as you describe.


Den

.

[rooboy11]

Hi Pugs/Wulf

Pressure setting min 6, max 20 (same as last machine). Went into sleep report is says average pressure is 9.5. Also noticed leaks says 11L/min...assuming that’s a lot? New machine, hose, mask (nasal pillows)..AHI .2, total AI .1

[Pugsy]

Went into sleep report is says average pressure is 9.5. Also noticed leaks says 11L/min...assuming that’s a lot?

No..actually not a lot.
What you see in the sleep report is what we call a 95% number and all that means is for 95% of the time the leak was at OR BELOW that number.
5% of the time it was above that number. No way to know how much more without looking at the leak graph.
ResMed says that the machine can compensate easily for excess leaks (what you are seeing on those sleep reports) up to 24 L/min and actually they do a very decent job of compensating higher than 24.

Same thing about the pressure..it's a 95% number and NOT and average number like you might be thinking of average. To see the real average you would need to use available software and then you get a median average along with the 95% number.

Here's an example of the statistics you can see on the left side of the report.
for pressure or leak....you get
minimum
median average (now you can change this to overall average but I have found it doesn't change it much so I don't bother)
95%
max

What you are seeing on the sleep report is the 95% number..not an average of anything. 95% numbers can be real close to average numbers or a lot higher. They are easily skewed upwards by relatively short periods of time at higher numbers (leaks or pressure) so they don't always mean anything of great significance.

[Pugsy]

Now back to your original question.

You used this same model machine at the same settings during your trial and you felt good.
Now this new machine at the same settings you aren't feeling so good.
You understandably wonder what changed or if there is something wrong with the machine. Without being able to compare the results from the first trial machine with the results (using software) there's really no way to know what might have changed.....if anything changed.

About all we can do is look at the data you have available now and see if anything stands out that might be a factor.

[D.H.]

The report looks good. I guess what you're saying is that you feel rotten.

I also noticed that this report was from December 17 (it's now February). Is that report from the old machine or the new one?

[Pugsy]

The report looks good. I guess what you're saying is that you feel rotten.

I also noticed that this report was from December 17 (it's now February). Is that report from the old machine or the new one?

That's my report not the OP's report. I haven't seen any report from the OP.
I just used my report so he could see what statistics are offered and explaining of 95% numbers.

[rooboy11]

Now back to your original question.

You used this same model machine at the same settings during your trial and you felt good.
Now this new machine at the same settings you aren't feeling so good.
You understandably wonder what changed or if there is something wrong with the machine. Without being able to compare the results from the first trial machine with the results (using software) there's really no way to know what might have changed.....if anything changed.

About all we can do is look at the data you have available now and see if anything stands out that might be a factor.

Thank you. Yes that is correct, I am going to fish out the data and post it. Hopefully we can find something

-Roo

[D.H.]

One thing you might want to confirm is that your CPAP is actually putting out what it says it's putting out. If it's not working correctly, it could say and record one pressure, but actually be putting out another. This is less likely with the newer machines than the older ones, but not impossible.