> I remember doing a lot of looking online at acoustic foam after this > job. If memory is correct, it is much thicker than one you can buy for > a mattress (at least at that one WM). And, the acoustic foam is quite a > bit denser, which theoretically will reduce sound more. If it's worth > the price difference might depend on the situation ( i.e., what level of > sound reduction is needed). The most effective acoustic barrier is mass, so acoustic foam should be considerably heavier than anything a mattress would be made from. Ron N
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