Hi g1981c,
IMO … no to both.
You can see some of my thoughts about super premium mattresses in post #2 here and in post #2 here.
If I was looking at mattresses like this … i would probably be looking at VI Springs or perhaps Hastens, Savoir, Relyon, or Hypnos rather than Kluft. Their sites will give you lots of insights about how they make their mattresses. Most of them also have some fairly thick “books” of information they will send you about their mattresses.
Phoenix