I knew that I needed a memory foam mattress topper to make my firm mattress more comfortable for me. However, I was concerned that foam alone would trigger my chemical sensitivity and that over time keeping the topper fresh and clean would be a challenge. Your Down Alternative Cover for Memory Foam Topper seemed the perfect solution. When it arrived I was pleased to see the fine quality. It was nicer than I thought it would be. The fabric is smooth and comfortable to the touch yet strong enough to withstand years of daily use and washing as necessary (note: washing must be done in a extra-large commercial machine). I love the construction; zippers on three sides make it very easy to insert the memory foam and protect it completely. The square quilted top has just enough down alternative filling to make it "cushy" without being "too puffy" or interfering with the foam. I purchased a 2" topper but the cover is generously constructed and will easily accommodate a 3" or 4" topper. My bed is much more comfortable and I'm very pleased with my purchase.