Hi Michael1973,
Some of the Ikea mattresses are good quality and value and would be well worth considering if they are a good match for you in terms of PPP.
There are too many unknowns, variables, and preferences involved for anyone to suggest or recommend a specific mattress for someone else based on specs or theory at a distance so I’m happy to help with “how” to choose but the specifics of “what” to choose is up to each person (see mattress firmness/comfort levels in post #2 here). I also don’t keep a record of the specific construction of all the mattresses at all of the retailers or manufacturers that I list in the various lists around the forum (which would be an impossible job in a constantly changing market).
I would just follow the steps in the tutorial post and choose the mattress that is the best match for you in terms of PPP (using the testing guidelines) and make sure that there are no obvious weak links in the mattress in terms of the materials (see post #4 here).
I think highly of Restopedic and they would be a manufacturer that would be well worth considering for anyone that was in reasonable driving distance no matter which of their mattresses is the best match for the parts of your personal value equation that are most important to you.
Phoenix