This is the first memory foam mattress I've owned, so I was kind of taking my chances with it. Shipping was fast, and while the mattress is VERY heavy, I was able to wrestle it onto my bed frame and get it unwrapped by myself. Within a few hours, it was mostly inflated, and by the next day it was at full size. I slept on it for the first time two nights ago. I was a little apprehensive when I first laid on it, because memory foam feels FIRM, and I prefer a soft bed. But after a few minutes, I could feel the sink around my shoulder and hip (side sleeper). Very comfortable mattress, and a huge improvement over my old, broken-down innerspring. I'm very satisfied with this purchase, and wouldn't hesitate to recommend the mattress to any other side sleepers - just remember to give it time to conform to you if you're not used to memory foam!