Has anyone tried one of these anti-roll baby positioner pillows?

Stephanie • Writer, mommy, makeup addict, book nerd, animal lover, & crazy person. I have a BS in Psychology and an MFA in Writing Popular Fiction. Trying to have it all: writing, career, & family.

I'm about to transition my son from his bassinet to has crib and I keep seeing these advertised but no reviews on if they work. Are they safe? Do they work? Has anyone tried this? If you tried it, did it work? My son has acid-reflux so I'll need a wedge anyway so I'm curious if this is a viable option.