Hi Leipzig,
I’m glad you found us before you pulled the trigger on a Beautyrest … or any mattress where you don’t know the quality of the materials inside it. Regardless of the brand … a mattress is only as good as its construction and the quality of the materials inside it an without this information there is no way to make any meaningful quality or value comparisons with other mattresses. The major brands typically use lower quality materials (or don’t disclose them at all) than many other smaller manufacturers in every budget range.
The first place I would start is post #1 here which has all the basic information, steps, and guidelines that can help you make the best possible choice … and avoid the worst ones.
Some of the better options and possibilities in the New York city area are listed in post #2 here and there is a more categorized list with more details of many of them in post #7 here.
Phoenix