With layers of blended British wool and viscose, Yorkshire wool, British wool, crisp cooling cotton and Sustainable Ecotex. The Valiant Enhancer features 5000 HD Micro springs, while the Valiant support mattress features 3000 springs, combining Cortec™ Quad Revolution® and HD micro springs. Chemical treatment-free mattress cover. The Valiant support mattress is turn free for your convenience while the Valiant enhancer is a seasonal turn with a warm side for the colder months and a cooler side for the warmer months. Mattress tension is only available as medium. Base: Shallow True Edge Standard with a choice of cover and leg finish. Available as 2'6", 3', 4'6", 5' & 6' shallow base sets and as mattress only options.