Veraflex's main structure is comprised of spiral Bonel Spring System, one of the most developed spring systems in the worls. Firm foam encasement system surrounds the bonel spring frame for additional support and years of perfect form. The veraflex mattress is the perfect choice for those looking for a semi-soft mattress. The spring and filing system along with the luxury quilting gently conform to your body, helping you fall into uninterrupted deep sleep. Maximize your sleep experience with durable Bonel Spring System overlayed with rich full filling and topped with plush quilting.