Hi ttmone,
You can see my thoughts about the Sleep Science Black Diamond in post #2 here and the posts it links to.
When you are comparing mattresses I would use “mattress only” prices because one “set” may have a different price base or adjustable bed than another which makes comparing the mattresses impossible if the price is for the set.
I would treat an adjustable bed as a separate purchase based on the features you want and price comparisons between the ones that have similar features regardless of brand because they all perform similar functions. Post #3 here and the adjustable bed thread it links to may be helpful for choosing an adjustable bed and it also has some sources you can use for a “value” reference point.
I don’t know the specifics of the mattress you are looking at with Midwest bedding but I personally wouldn’t buy the Sleep Science for the reasons I mentioned in the post I linked so out of the two of them I would choose the mattress at Midwest Bedding (assuming there were no lower density materials in the mattress) but having said that each person may have their own personal value equation and make their final choice for different reasons than I would.
The tutorial post (linked at the top right corner of the page) has all the basic information, steps, and guidelines that can help you make the best possible choices … and know how to avoid the worst ones.
You’ve probably seen this but the list of better options and possibilities I’m aware of in the Omaha area are in post #2 here and Midwest Bedding would certainly be one of the better options in the area.
Phoenix