Memory foam toppers, do any good ones exist?

The type of mattress I slept on while we were away (the power is back on! we are back home) was a Simmons Beautyrest Classic.

For me, I fall asleep on my side and wake up on my back. Weight is 190lbs.

Coming back home the back pain came back. I gave up last night and moved to an Ikea foam mattress we have in the guest room, felt much better. It’s their cheapest one but fairly unused so its still firm.

I saw your post here:
https://forum.mattressunderground.com/t/assistance-needed-in-nj
For central NJ shops. I will start in Fanwood as that is right around here.

As I have never before bought a foam mattress, well, I bought the Ikea one but that was just because it was in their open box section and about $100, what am I to expect? Do I need to flip and turn them or do anything different that I wouldnt do with a spring?

I dont think I want memory foam, I’d rather stay with the latex than get into the whole chemical debate over the memory.