I mentioned this trusted member from the Canadian market. I did not carefully review this link, but on the surface, it articulates building a mattress for larger side sleepers. Just as a point of reference. Remember, you can remove a solid foam core and replace it with a good quality spring support layer and get similar, if not better results long term for larger folks. It is all about the quality.
MFC Heavier Sleepers
Thanks, I had come across this post and MFC during my research. I’ll call tomorrow Sealy and S&F to see if I can get any more information for heavy side sleepers.