Futon bunk beds are a recent phenomenon, and have their roots in the natural evolution of futons. In recent years, futons have significantly improved in style, quality and comfort. In fact, futons have evolved from the tri-fold frame designed for college dormitories to more appealing, sofa-style sleepers with custom pillows and covers. In addition, futon mattresses have improved in quality, and are now nearly as comfortable as traditional mattress. These factors, along with their versatility a.