Cpap in sleeping bag

Granted, I’m not a health professional.  However a number of them put me on CPAP machines for sleeping.  The inhaled air was filtered with water and forced through my nasal passages with a pump..  It sounds like you have a much more miniaturized CPAP machine; but I would share your concerns about not having fresh air using a CPAP, because the problem with them is if something goes wrong, you may be asleep and not realize it.

The reason I’m not familiar with the latest CPAPs is that I tried using breathe strips instead, available at most drug stores and Walmart without an RX.  I had been diagnosed by several health providers with mild to moderate sleep apnea.  However, the strips immediately let me breathe freely while sleeping; and when hiking, my companion said I no longer snored. So have stuck with the strips with no problems, and use them for backpacking as well as at home.

Yeah, I’m less worried about it because I’ve read about others doing it and I’m still exhaling outside the sleeping bag. The cpap itself is extremely minature and would be no problem at all except for the weight of the batteries.

There are still a lot of electric parts and fragile pieces but I can next day air things if needed and considering it’s the AT that doesn’t terrify me.

Since you are exhaling outside the sleeping bag you won’t have to worry about increasing the CO2 for your inhaled air. I would think that the intake of air through the porosity of you sleeping bag would be drawing cold outside air into your bag and make it effective at keeping you warm. Since I assume you are not using a heated humidifier to use less battery power, you may want to consider a heat/moisture exchanger to increase a bit the humidity of the air you inhale and your comfort.

Correct “make it effective at keeping you warm” to “make it less effective at keeping you warm”

I haven’t noticed any difference in warmth even in extreme cold,The lack of humidity of the air would be a huge issue for most people. I have never used or even tried using the cpap humidifier and it hasn’t been an issue.

I’ll bet that you could rig a piece of mask hose to the intake of your cpap machine. Extend the hose outside the bag. Then your intake would be fresh air, but the battery and all would be in your nice warm sleeping bag. Wouldn’t even have to be a perfectly airtight fit; just duct tape would probably do the trick.