I bought this one to go on top of a futon. I can’t speak to how it will feel on a hard floor but it came packaged up in a compact box and gives decent support because it’s memory foam. You might have to order the Queen or king size for the dimensions you want. Hope you heal quickly and find an option that offers relief. Zinus 3 Inch Swirl Gel Memory... https://www.amazon.com/dp/B073JWM66S?ref=ppx_pop_mob_ap_share