Bests & Worsts Reviews from Amazon

I bought the older yellow memory foam from Sleep Innovations using the same amazon listing years ago, and then I bought the new "blue" foam in 2021. Since I bought both versions using the same product listing and the same company, I expected a high quality product. The old yellow foam was great. It was a high density memory foam. The old product supported your body well, and retained a handprint for a while when you pressed on it. The old foam lasted for years without much degradation. (I'm still using it on another bed.) The new blue foam is MUCH less dense. It does not offer very much resistance when you lie down on it. It feels similar to lying directly on the mattress underneath. If you pinch the new foam between your fingers, it collapses to a small size, less than a third or a quarter of an inch perhaps. Besides being much less dense, the new product does not appear to behave like "memory" foam. If you press your hand into it, even hard, and release fast, your handprint does not stay behind at all. In my opinion, the old and the new version are very different products. It seems misleading that the old amazon product listing has been re-used because this listing has great reviews from the older product. However, a very different product has been substituted.