This topic may sound like something that is a little to niche. I will tell you that breathing at night is an issue that deserves talking about. You will need to prepare to deal with your sleep apnea if you are heading into a SHTF scenario. Not only is sleep apnea dangerous and breaks you down over a long stretch of time it can snuff you out altogether. Yes. Sleep apnea can kill you in your sleep. The irony of being a prepper and dying from sleep apnea is too much for my mind to compute.
There are some great ideas about what can be stored to protect yourself in your sleep. Stocking up on the supplies that will keep you alive is what prepping is all about. Do not leave your ailments out of that equation.