Classic Brands 4.5-Inch Innerspring Replacement Mattress for Sleeper Sofa Bed, Queen MATTRESS ONLY. Fits most standard fold-out sofa bed sizes. Innerspring mattress easily folds into most standard sleep sofa beds and returns to its original shape after many uses Combines a steel coil innerspring system with plush fiber to provide firm support and cushioning comfort so your guests sleep as comfortable as possible Luxurious quilted damask cover Medium-plush feel Mattress ships compressed, rolled and shipped in a box conveniently delivered to your door for easy set-up; sofa not included 3 Year Warranty