Sofa Bed Mattress and RV Mattress replacements at affordable prices. Comfortable, and Durable. Fast Delivery. Stock items in 48 hours and custom within a week! We supply stock and custom replacement mattresses for all sofa beds, recreational vehicles, campers, and third wheels. We also supply custom products for boats. All of our products are engineered for maximimum comfort. A sofa bed or sofa-bed (in the US often called a sofabed, hide-a-bed, bed-couch, sleeper-sofa, or pullout sofa) is typically a sofa or couch that underneath its seating cushions hides a metal frame and thin mattress that can be unfolded or opened up to make a bed.A futon differs from a sofabed, although sofa beds using futon mattresses are common. The next sleeper sofa in top 10 is DHP Euro Sleeper Sofa Bed, which is the best sofa bed for small space like bedrooms, guest rooms, apartments and college dorms,…. First of all, this couch from DHP is designed for your small-space home that comes with Rich Linen upholstery and Chrome Legs.. What is good with this sofa is that it is easy to convert to multiple positions of the arm settings. A bed is a piece of furniture which is used as a place to sleep or relax.. Most modern beds consist of a soft, cushioned mattress on a bed frame, the mattress resting either on a solid base, often wood slats, or a sprung base.Many beds include a box spring inner-sprung base, which is a large mattress-sized box containing wood and springs that provide additional support and suspension for the .