Eco Mattress Store Sleeper Sofa Memory Foam Mattress Queen 58 x 72 x 4.5 Memory Foam Sleeper Sofa Bed Mattress Queen 58 x 72 x 4.5 Affordable 4.5-inch Profile Sofa Sleeper Mattress Memory Foam Sofa Bed Mattress- Affordable Sofa Sleeper Mattress 1.5-inch Memory Foam atop 3-inch support foam Fits most standard fold-out sofa bed sizes.