With all the choices of bed in a box, we decided to go with Polysleep based on edge firmness and reviews. So far, we're glad we did. It took a few days to get used to, but we're finding our sleeps to be longer and deeper. There's no transfer of motion, which is great for my partner as I move around A LOT. I'm finding that I am comfortable on my back, sides and stomach. So far so good (about a month)