Hi suziQ,
I think you may have meant [url=https://forum.mattressunderground.com/t/latex-mattress]this post? I have quite a few different “placeholders” for site members offering latex mattresses.
There are thousands of forum members here who have purchased all-latex mattresses, and they certainly can be a good option for someone of a higher BMI. Besides consulting one of my earlier replies to you with links for people of a higher BMI, you would also wish to consult directly with any all-latex manufacturer should you be considering one of their all-latex products for their suggestions for someone with a higher BMI, and also any potential options for customization/return, should things unfortunately not turn out as well as you would hope.
For more complete information, the Botanical Bliss has been discussed previously here on the forum. It does use latex and good quality materials. You can choose various firmnesses, and the top layer is exchangeable.
Phoenix