This Easy Comfort Folding Guest Bed with 3.7 inch thick Foam Mattress is a quick easy solution for any last minute guest. This guest bed comes with a 3.7" thickness mattress, so there is no need to buy an extra box spring. With a foldable design, this item is easy to open and great for small spaces. Equipped with 4 casters, the bed is easy to move around from your storage to sleeping area. The steel frame is sturdy and durable, ensuring a long service life.