Editing this rating after having three people sleep on it: It's super comfy to sit on, and a good napping sofa, but once unfolded it's pretty miserable. Once you lay the back of the sofa down, you sink right into the middle where there is a huge crack. And that's the only sinking that goes on. The "memory foam" is SUPER firm. So, if this is just a sofa for you to sit on or nap on occasionally, it's a great buy. But, if you're looking to have people sleep on it... keep looking! Also, It's beastly heavy, and comes folded up all in one piece. You can't disassemble it, which makes carrying it up stairs pretty tough. Heavy usually means quality though, so we're excited about that part...