Don, which heft and thickness did you order? I’m in need of new mattresses myself. I used them for new foam to rebuild my dinette and they were great in assisting me in foam densities and suggestions. I know they’re not cheap by any stretch.
4" of LUX HQ for the base and 3" of memory foam on top of that, all wrapped (not glued) in 1 mattress cover. For me, I got the 5lb memory foam and for Patti I got the 4lb memory foam.
Delivered price for both was slightly under $700 so $350 each for a custom memory foam mattress.
I hope I made the right choice, we did get samples foam cubes from them beforehand. The original mattresses are all memory and we put 2" memory foam topper on that. Over the last 6 years the originals ended up compressing so much, that it doesn't take too long in bed now before our butts or hips and shoulders are essentially lying on the plywood base.