I'm so confused by these great ratings.. The box is half the size of any mattress in a box I've ever seen.  It's not plush or soft.. It is very springy. Bouncy for sure. If you sit on the edge you'll probably fall off. The price reflects the quality. I added a 3 inch gel topper and a 2 inch soft top one and I'm still not feel like I'm sinking into it at all.  I guess you just can't go by reviews..