Whitebeard has logic, but not facts.
As a 11+ year user, I can attest to the fact that my Breeze pillows have definitely and noticeably increased the opening of my nares.
I have picked my nose enough during my 68 years to know of which I I talk.
The constant pressure for 8+ hours per night is enough to enlarge them.
Many others have reported the same.
Others results may differ due to amt of pressure exerted against the sides of the nares or total time used.
I have a bad habit of using my cpap while reading or watching tv from my bed.
Not good, I know, but I use it much more than the hours sleeping.
Not good, I know.
Absolutely no question IN MY CASE.