Thank you! This is precisely the perspective I am trying to gain.
It is so hard to have a subjective comparison on this, as I dont have the benefit of ‘feeling’ the SOL mattress.
Doing a search on this forum, I found this post: Nivrana Specs
Looks like the previous buyer confirmed the specs for the poly foam: 2.5 lb., 36 ILD base foam (see previous message HERE)