Here's what I know for sure;
I've learned SO much about mattresses due to this horrible experience with Berkeley Ergo and my Berkeley Ergonomics mattress, that I don't think its going to be too difficult to buy my next mattress.
Its going to be ALL latex. No springs.
It will have a THIN exterior cover that stretches in all directions. Four way stretch.
NO WOOL. Having wool too close to the body is like sleeping on a sweater.
Based on my experience with Berkeley Ergonomics and especially Andrea Karsten, I can say with complete certainty that they are the worse firm and she is the worse individual that I have had the misfortune to deal with. I am in the process of writing a book about this experience and all I've learned about the mattress industry.