I'll say the quiet part out loud, because I thought it too: I saw this on Instagram, I'd never heard of the brand, and my first thought was "here we go again." I've been sold "miracle" pillows before. So before I bought, I did what you're probably doing right now - I checked.
What I found: a brand with thousands of real reviews averaging 4.8/5, an actual returns address, and a guarantee that people in the reviews confirmed they'd actually used and gotten their money back through. Reviews are the single biggest reason people say they finally bought - more than the pain itself. Not because of the ad. In spite of it, almost.
If you're skeptical, good. So was I. Read the reviews yourself before you decide anything.