Sleeper completely rethinks the sofa-bed with a fully supported foam seat and back that effortlessly folds open in one smooth motion. Bensen has developed a unique pivoting system that uses gravity and the sofa’s own weight to lock itself into place. With its welded steel frame that provides strength while maintaining a rigid base, Sleeper is also relatively lightweight compared to clunky wood-framed models. Cushioning is high-resilience seating foam, layered in differing densities, and covered with a removable fabric cover or upholstered in leather.