I've had some great ones for sure.
I haven't heard of any of these!
https://www.ncoa.org/adviser/sleep/best-mattress-for-back-pain/
https://naplab.com/best-mattress/best-mattress-for-back-pain/
https://www.nytimes.com/wirecutter/reviews/mattresses-for-back-pain/
If you can, go to some different stores and ask around in your area.
I think I've had a Sealy for 25 years from Sit n Sleep. But it got to hard for my shoulders.
So I gave it to my guest room. I have a private label now in my bedroom and I put a foam topper on it. All the lush pillows I use, makes all the difference!
best, Lori

Yes need mattress advice!!