Amazon Basics Down-Alternative Pillows for Stomach & Back Sleepers - Soft Density Hypoallergenic Bed Pillows, 20x36 Inches (2-Pack, White) - Ideal for Side Sleepers, Hotel Comfort, Guest Rooms & Home Bedding

TL;DR, these are great pillows for the price and there is little difference between the soft and medium (but enough to notice if you have a preference). Unless you have a more extreme preference (super soft or super firm) one of these will likely work for you. Hopefully the detailed review below is helpful for someone!I had been looking for a new pillow for a while, and had ordered several that didnt work out. Too soft, too firm, too thick, too thin. I was starting to assume it was going to be a no-win situation for me, and I'd eventually have to settle on something that didn't meet my needs. I decided to take a final chance on these pillows, and I'm glad I did as they ended up working out well for me. Initially I struggled in choosing between the soft and medium options. In the end, I ordered both and found they were quite similar when inspecting the thickness/firmness with my hands. I decided to start with the medium thinking it was closest to what I was looking for, but I found my neck was a bit stiff upon first use, and didn't improve after trying another night. I then decided to try the soft, which for me was just right.I gave the pillows 5 stars because I've now used the soft pillow for several months with no issue, and I continue to sleep well. I've also found the medium pillow works well when I visit my mom, as her memory foam guest bed requires a thicker pillow for me to sleep well.Lastly, my one bit of advice would be to make sure you refluff and turn your pillow every so often. Because it's poly filled, the filling will have a tendency to begin to mush down a bit where your head lays if you don't. I noticed this after about a month of use, but was able to fix it once I made an effort to refluff on a regular basis.