Hi trevorreznik,
One of the links in the tutorial post is this article which would give you even more reasons to avoid Macys, Crate & Barrel, or any of the major brands such as Sealy.
The better options and possibilities in and around the Chicago region (subject to the guidelines here) are listed in posts #2 and #4 here. I would make sure that you include Quality Sleep / My Green Mattress in your research.
Phoenix