REsmed S9 vs Resmed S10

I currently use a Resmed S9 CPAP machine. I'm thinking of changing to a Resmed S10 Autoset. Does anyone know whether it is worthwhile changing? I like the idea of the pressure changing according to your breathing pattern but don't know effective the S10 is.

I have the ResMed AirSense A10 AutoSet. I started out in Auto mode, and after I found out what pressure works best for me, I switched it to fixed pressure mode. My wife has a S9 and still runs it in Auto mode. I think for people who have significant central apnea a fixed pressure may work better than an auto pressure machine. The auto pressure can get carried away and take the pressure too high which causes even more central apnea. I suffer from central apnea, but my wife does not.

The one nice feature of the A10 is the AutoRamp. It holds a fixed pressure until you go to sleep instead of actually ramping it up slowly for a fixed length of time.

Not sure where you are, but in Canada ResMed just increased prices drastically. The price of an A10 has gone from about $800 to $1200. Not sure about the price change in the US. It used to be after exchange the US prices were more than in Canada.

Thank you very much for your reply - most enlightening! I think I'll stay with my S9. I recently lost my excess weight and felt so much better I stopped using the CPAP some months ago. However the lethargy and bad morning headaches came back plus I started having dreadful night tremors, so I'm back on the CPAP. I lowered the setting to 14 and sleeping comfortably again. My only complaint I often wake up with bad stomach pains from swallowed air. Any words of wisdom for that. I live in Cape Town SA by the way.