I purchased this as a replacement for the cotton mattress that came with our futon. I was very skeptical when I saw how small the packing box was, but we took it to the guest room and unpacked the mattress. It took a couple of days for it to regain it shape, but was pleasantly surprised to find out how comfortable it was. Initially I was upset with myself for not upgrading the mattress when I purchased the futon, now I am glad I did. This mattress cost less than half the price of the upgrade and it is thicker and a better quality than the best available upgrade at the futon store.