Hi RooMacIV,
Regardless of the name of the manufacturer … a mattress is only as good as the quality of its construction and the specifics of the materials inside it so I would need to know the details of the materials in the mattress to make any meaningful comments about it. I would be a little careful though about the Boyd mattresses because some of them use a material called “engineered latex” which isn’t latex at all but polyfoam which has been fabricated to “feel” like latex. On the face of it it seems that this would be on the pricey side if it was a polyfoam/latex hybrid. A forum search on “Boyd” (you can just click this) will bring up many more comments about them.
I’m not sure what size you are looking at or if it includes a foundation but if you do decide to go in this direction I would make some good value comparisons with other similar mattresses in the area or online.
The “feel” of a mattress is subjective and there isn’t a formula that can be used to choose a topper but there are some topper guidelines and links to other posts that may be helpful in post #8 here. It’s normally more effective and less risky to choose a mattress that already matches your needs and preferences in terms of PPP (Posture and alignment, Pressure relief, and Personal preferences) because choosing a topper that you haven’t tested in combination with the mattress it will be used on can be almost as difficult as choosing a mattress because there are so many unknowns, variables, and preferences involved. I would keep in mind that the most important part of a mattress purchase is that it provides you with good alignment and pressure relief in all your sleeping positions and “feel” is the subjective part that is unique to each person. The more soft foam or other materials you add to the top of a mattress the greater the risk of alignment issues.
Phoenix