Phoenix,
Thanks very much for your reply.
I think you’ve talked me out of surgery. Too many unknowns … as much as I would like to get some value out of that mattress.
One of your posts (can’t find right now) mentioned two products to go under the old mattress, I think, but the links weren’t working. I’d be curious to see what those were. You also mentioned putting boards under the mattress. I could try that, or maybe even a slatted thing like this to “push up” in the middle?
I had seen the extensive San Diego list before, but I guess I stopped too soon when sampling prices. The options are a bit overwhelming!
Thanks for the thoughts on the specific Ikea mattresses, especially the ones not covered in the helpful #3 post. The Favang felt comfortably firm on the springy slats. I was concerned that it would be too firm on my platform. They had cutaways of several of the mattresses on display. Guess I need to head back with a ruler and get more details on the ones I like.
Mark