What are the technical details of your foam construction? There are varying grades and several relevant ratings for foam mattress materials - on your specs page

What are the technical details of your foam construction? There are varying grades and several relevant ratings for foam mattress materials - on your specs page these are not listed. I would be specifically interested in the relevant grades/ratings for your support core, and the same in the comfort layer. The type of information I am interested in is that which is outlined in the relevant foam sections listed on the following pages: http://www.themattressunderground.com/mattresses/comfort-layers.html http://www.themattressunderground.com/mattresses/comfort-lay... http://www.themattressunderground.com/mattresses/support-cores.html http://www.themattressunderground.com/mattresses/support-cor...