Thanks for all the replies!
I think I’ll be able to manage the tubing cleaning thing by trying to do it on rest days, which I can try to do at a private accommodation/hotel, etc. I’ll ask my sleep dr about the SD card, but so far neither the medical people, or the insurance people, or the medical supply people, have been any help, particularly about the travel-sized cPAP, which I would love to have, but these are very expensive. I did consider renting one, which would be around $300 USD, but that’s just for a rental (full purchase price is around $900) and I’ve been told in no uncertain terms that insurance won’t cover a travel cPAP. Being that I also have to purchase a suitable backpack, suitable shoes, not to mention the cost of flying, this is adding up very quickly. I did buy an Osprey 48 L Kester for $200, very nice, spacious backpack that would accommodate the cPAP machine with plenty of room to spare. As I see it, $200 for a backpack that i get to keep is a lot cheaper than $300 for a travel cPAP rental that I have to return. I will consider buying a travel sized cPAP in the future, when I dont’ have to deal with the up-front cost of a first-timer.
I’ve been experimenting with putting items like clothes I’ll be likely to wear, my medications bag, etc, and it seems I’ll be able to pack it all with minimal weight, but we’ll see. The cPAP machine is in its own case that I can pull out of the backpack and take it as carry-on, so I can check the backpack as luggage (I plan to get a duffel bag to prevent the various loops, hooks, etc from being snagged in the conveyor belts and to include my trekking poles). I think (or at least I hope) that this is do-able!
One more concern: I was told by the medical supply company that under no circumstances should I connect the machine to a power strip with multiple outlets, or to an extension cord, which will be a problem if I also have to charge my cell phone. Anybody has had this issue?
Thanks for the replies, y’all have been very helpful! I still have tons of questions about different topics, but I’ll keep reading these boards where I’m already learning so much!
Buen Camino, y’all!