I am so pleased with this mattress so far. I had my previous mattress for 9 years and was so ready to replace it with something nice and I found it. The mattress was heavy, which is good. I placed it on the bed frame and removed the plastic and it instantly started to expand with no problem. I did have to adjust the gray material at the top as it was sort of stuck to itself, but that was no big deal as I just helped it to expand faster. The mattress if firm and springy but so soft on the top, kind of like a pillow top. I had bought a pillow top mattress pad years ago that I didn't even need for it, but I put it on anyways which didn't change it much as it was already so comfortable without it. Needless to say, I am very impressed with this mattress and the support and softness that I am getting with it. I slept on it the same night that I received it with no problem. So far it's going on 4 days and I Love it!