I’m not sure what this adds to the discussion, but a couple of years ago I got a new bed. It wasn’t memory foam but rather latex over individual coils. Incidentally latex never breaks down, unlike all types of foam.
The queen size mattress was made of 2 side by side latex pieces to allow different firmness on each side, but I could feel the gap and they sent me 1 huge latex piece to replace the two. Before I sent back the latex pieces, I tried one in the corner of my room. It had lots of small holes. It definitely seemed to absorb bass and inquired what it would cost to keep them (I was secretly hoping the company would forget about picking up the now slightly used latex) but they indicated it would cost over $800 for me to keep the pieces. I Don’t know if anyone has ever experimented with latex as a sound treatment, but it seemed like to had potential.
The queen size mattress was made of 2 side by side latex pieces to allow different firmness on each side, but I could feel the gap and they sent me 1 huge latex piece to replace the two. Before I sent back the latex pieces, I tried one in the corner of my room. It had lots of small holes. It definitely seemed to absorb bass and inquired what it would cost to keep them (I was secretly hoping the company would forget about picking up the now slightly used latex) but they indicated it would cost over $800 for me to keep the pieces. I Don’t know if anyone has ever experimented with latex as a sound treatment, but it seemed like to had potential.