Sturdy Steel Frame With Poly Jacquard Cover Set Up: Simply take your mattress out of the box and enjoy watching it decompress; Jumping, walking, and sleeping on your mattress can speed up the process No assembly required, simply open the box, slide the foundation out and unfold, it will immediately open to the shape of a box spring Designed to have the look of a traditional box, but made from sturdy steel for longer-lasting durability Folding mattress foundation compresses for easy mobility and storage