Portable and Foldable Platform Bed Frames for Boxspringless Mattresses. There are two (2) frames and one (1) mattress in this package. The frames can be used individually for two twin bed frames or used together (with two simple slip on brackets) as a full sized frame. Perfect for kids sleep overs or for visiting relatives. These stainless steel frames collapse to 4 inches wide and will fit neatly at the rear of any closet and take up very little room. These frames are in exellent condition, they sit squarley on the floor and without squeaks while in use. There is also a full sized mattress included which is in very good condition. Everything was purchased just over a year ago. I paid 250 for everything and I am asking $125. It is a great deal for a very nice bed.