Recommendations for extra firm mattress with soft 2-3” top layer

My SO has some back/shoulder problems and our current bed is both too soft for him overall and now wearing out to the point we both fall toward the center of the bed while we sleep. He’s sleeping on the floor a couple nights a week at this point to help his back, so I think it’s past time we got a new mattress.

The main issue issue is that while he needs something super firm, I have large hips and breasts that make mattresses without some give impossible for me to sleep on (my spine is always in some curved position otherwise), which is what led to us getting rid of his old board-like mattress.

We just started looking and I dragged him to an Original Mattress Factory location to lie on some beds, and their Orthopedic Adjustable and Orthopedic Luxury Firm seem to be along the lines of the type of “squish to a brick” effect I think will work for both of us.

Are there any suggestions here of other beds to consider or test out? I’d prefer to buy brick and mortar, to test things out and support local businesses and all that. I prefer spring mattresses, he prefers foam, just cause that’s what we’re both used to, so we’ll consider either or hybrid designs.