The Milliard 4.5-inch Tri-Fold Twin XL Mattress Sofa Bed is a versatile and affordable solution for providing additional sleeping and seating options. This hypoallergenic sofa bed is easy to adjust and can be easily transported for extended family visits, hotel stays, or camping trips. With its CertiPUR-US certified foam and removable cover, you can be sure that you are getting a high-quality and safe product. Foam Tips: