I am what I like to call "pleasantly plump," which really just means that I am very heavy. I was worried about buying a memory foam mattress because I was afraid that I would just sink down to the bottom of it and be sleeping on an inch of foam over my boxspring. I was also concerned that it would not be able to hold up as well as a traditional mattress. We had an old, but expensive, Sealy mattress, and it was killing my back and my knees. I had enough and decided to try this mattress in soft (even with my concerns, I did not want it too firm). What a difference!!!! I sleep better, and I don't have the back and knee pain that I used to have. Also, my concerns about the mattress not being strong enough to hold me was completely unfounded, as I have been sleeping on this thing for a month now, and I have never sunk down too far. I feel like I am sleeping on air. Also, as many have already said, it is soooo easy to get this up to your bedroom as it comes looking like a giant Tootsie Roll when you get it. I removed my old mattress, which was very difficult, and put this one on my bed, opened it, and removed the wrappings all by myself!!!. I am so happy that I got this mattress, and you will most likely be too if you decide to buy it.