jege41, I followed the thread on your topper, and referenced it in a post I wrote questioning if we were getting some bad runs of latex. I will check with Sean to find out who made the latex in my mattress.
https://forum.mattressunderground.com/t/latex-softening-posts
Phoenix, I was looking at another Doctor’s Choice with a topper because it is one quarter the cost of my current mattress and my previous Doctor’s Choice held up better than any of the all-foam mattresses I have tried. In fact, it held up better longer than all three of the foam mattresses combined. I guess I am thinking of throwing up my hands as far as finding a great mattress. I like the feel of latex, and want to believe that I got just some bad latex, but it is a stretch to have that faith at this point. :S
Well, here in Colorado we often blame things on the altitude 
Could it be that latex foam has trouble with thin air?
Lew