This was new, only had it about a year (there are a few really light scuffs), but without box. When it came, we took it out, blew it up, and tried to get our dogs used to it/on it. They weren't having it, haha! Other than trying to get the dogs to even sit on it, unsuccessfully (then realizing even getting them to sit in one place long enough to enjoy it, was unlikely), this hasn't seen water or even left the house. It was blown up for a couple hours, then I gave up, deflated it, and put it in the closet. So, rather than keep something I can't use, I'm selling it!
Approximately 63 x 27in x 7in(add a few inches for the pillow part). Main photo is a screenshot from the maker website.