Thank you for the info on Haven in Canada. I had only seen that co. in the U.S. On that note, after some research, I came across this post on TMU about Haven:
https://forum.mattressunderground.com/t/any-information-haven-mattress
Looks like they use a lot of non-latex material, do not specify the density of said material, and have 2" body impression (same as Logan & Cove) which is according to experts here, very high.
I guess I keep looking…I was really hoping this one would come up with all the necessary specs…boo.