Hi vncoffman,
[quote]I want a two-sided plain firm polyfoam. Just that and nothing else. No “comfort layer” (or at least a very subdued one), no pillowtop. Just firm polyfoam upon which I can put a latex topper.
Does this exist? Can one have it made?[/quote]
I don’t know of a mattress like this off the top of my head (most two sided mattresses are either an innerspring or latex) but I would imagine that there are many local manufacturers that could make something like this.
You could also just purchase the polyfoam and a zip cover from the list of foam and component suppliers here and make it yourself as well.
Phoenix