I bought this item in order to prolong the use of our sagging mattress and avoid having to spend a small fortune to replace it for a while. I read the reviews and decided to give this item a chance. What a good idea. It is all the other reviewers have said and more. It is a dream to come home after a long day or even a vacation and sink into this mattress topper. It was delivered quickly and came in a managable size box. After being unwrapped it was fun to watch it morph into it's actual size over the course of a couple hours. We let it sit for a couple of days and detected no smell to speak of. It has saved me the cost of a new mattress for the time being and my husband and I love it!