Hi Brandonr91,
Welcome to the Mattress Forum! 
The first place I would start your research is the tutorial post here which has all the basic information, steps, and guidelines that will help you make the best possible choices based on the parts of your personal value equation that are most important to you ā¦ and just as importantly know how and why to avoid the worst ones.
As you probably know ā¦ I think very highly of Quality Sleep / My Green Mattress and they are a member here which means that I believe they compete well with the best in the industry but some of the other options and possibilities Iām aware of in the Chicago region are in post #2 and #4 here.
Phoenix