I got a new mattress a few months ago. The guys that delivered it took my old one away, free of charge. The old one was pretty worn and the spring were broken, so using it as a guest bed wasn't a great option.Our current bed is a king and no space in our guest room for a king. So we will have to get rid of it. Maybe I will try to sell it or give it away. I don't know who wants someone used mattress but someone probably will.