Bought the 40" long size in orange. My 70 pound Australian shepherd fits comfortably on it by himself, as does my 50 pound Aussie (with room to spare.) It's a really cushy bed--it took my dogs a few days to get used to the nestlike design of the bed. It seems very well made, and as long as the dogs don't decide to chew it, I think it will last a long time.