Miss-sized and lumpy. After 72 hours this "king size" topper was smaller than a queen size bed size. There were areas that were 3" thick, ridges of them, but most of it was 2" or less. It was very uneven. There were ridges that make it very uncomfortable.
I would return this in an instant if it weren't such a major pain to try and re-package the thing.
Total waste of $$$.

When I first got to Afghanistan my mattress looked ok but it was basically like laying on covered springs. I took longer than I probably should have before ordering this. (stupid, I know) I'm about 205 lbs and this mattress does not have spots in it from where I lay on it and it provides plenty of comfort. Now getting 8 hours of sleep is almost hard because I get better sleep because of this. Before I would still be tired after 8, or sometimes more, hours of sleep. Also it took maybe an hour to fully inflate after opening it up. No waiting for a long time just to lay down. I recommend this to anyone. And.... it delivers fast.