Thanks for all the comments. I only do tent camping a few weekends in winter. My sleeping bag is rated at 20 degrees and I also use a liner which is supposed to give you another 10 degrees. It got down to +25F and I woke up freezing, pretty much my torso, not my feet. I have a mummy bag and always s...

I have been using CPAP for quite a few years. I am also a camper, recently doing some winter camping. I have good camping gear, but wondering if using a CPAP in cold weather can add to waking up shivering in the middle of the night. Can breathing in cold air 32 degrees and colder through the CPAP ca...