Perfect for sleeping on side and stomach
"I really like this mask but was sad that it only came with one nasal size. I guessed at small but wondering if that is the best fit. I thought the mask came with a variety of nasal sizes but apparently, not and seems expensive to buy one or two in different sizes to try them out. My last mask I bought came with a variety of sizes to find the best fit. Otherwise, this is working well for me though I get a message to check the fit which makes me wonder if I am using the wrong size nasal part."






