Same here. There are often a 6-12 out every night when I do my walks. Many are lousy or meant to be replaced, but sometimes people move out in a hurry and literally dump their apartments on the curb where it's a field day for those who are paying attention. When it's a wealthy person, the stuff is good and literally moved outside and sitting there for only a few hours, perfectly clean! There is a lot of $ to be made from mattresses, but I stay away from them because it's not worth the space and risk. This one was a lucky situation.