Need to accommodate an extra guest? The LUCID Rollaway Bed with Memory Foam Mattress is a perfect and comfortable solution. Not only does it fold up for easy storage, but the 4-inch memory foam mattress gives your guest exceptional comfort for a good night’s rest. Sleep Master Folding Guest Bed. Your overnight guests will enjoy the luxury of this cheap folding guest bed. The Sleep Master Folding Guest bed comes with 0.5 inches of fiber padding and 2.5 inches of base of Pressure Relieving Comfort Foam. Designed to resemble a cupboard or trunk (complete with faux doors and drawers!) when in its collapsed form, the cabinet rollaway hides the mattress and the bed frame inside itself until needed. .