Get the best of both worlds! The Two-Sider futon features a soft side for sitting and a firm one for sleeping. The only futon mattress that does double duty, just like your frame. The estimated daily use lifespan of this futon is 8-10 years, even longer if only used occasionally. Available in all traditional mattress dimensions, as well as chair & loveseat sizes. The twin futon loveseat size is a split mattress, with the chair sized 39 inches x 54 inches and an ottoman sized 39 inches x 21 inches.