A pillow top is one that is smaller and fits just inside the nostrils. I wish I could put a picture here to show you. Just go to www.google.com and click on 'images' and type in pillow top cpap mask. I'm still using my original nose mask that I used in the sleep study. It just works better for me, but others swear by the pillow top one. I think it's just personal preference. :)
Good Morning! I'm a new cpap user. I just picked up my machine 06.11.15. I started with a pillow top mask and went back to my original nasal mask that was used on me during my sleep study. In all fairness, I haven't been using it for a full week yet, but I have to say that I'm more tired than before. I felt like I was having to work to breathe out with the pillow top at least when I would first lay down for the night. As time went on, it wasn't too bad, but still didn't seem right. Going back to the original nasal mask seems to work a bit better. I don't know........... it's just challenging to get used to. LOL