I’ve had back and neck issues since I was a child (34yrs old now). Over the years I’ve spent several hundred dollars on pillows and nothing has come anywhere close to matching the WonderSleep pillow. I bought a 2pk off Amazon 3yrs ago and they’re still going strong, but I’ve since bought another 2 pack to have as a backup jic they’re ever out of stock and I have a pillow emergency lol.
WonderSleep Premium Adjustable Shredded Hypoallergenic Memory Foam w/ Bamboo Derived Rayon Cover
Edit: Now if I could only find a mattress that helps my back. Those are quite a bit more expensive though, so not as easy to just buy new ones on a hopeful whim.