Milliard Tri-Fold Foam Folding Mattress and Sofa Bed for Guests or Floor Mat - Twin XL 78x38x4.5 Inch Simple, but elegant alternative when full-size sofa beds arent an option. Great for apartment dwellers, college dorms, family dens and when your traveling or anywhere else space is limited. Great for Video gaming, reading a book or camping and of course sleeping. Includes a removable and machine-washable soft cover! Made out of CertiPUR-US certified high density Foam so your bed dosn't sag and is light and portable enough for use while travelling. Size: 78"x38"x4 (Twin XL). Storage Dimensions are 38"x29"x14 which makes it easy to store in tight spaces.