Indulge in a restful night's sleep with the Julian Bowen Double Bonnel Spring Semi Orthopaedic Mattress. This 13.5 gauge bonnell spring unit mattress is designed with a 900gsm spring insulator pad and 600gsm polyester filling to ensure you experience unparalleled relaxation. It also features high-quality stitch quilting along with an oyster damask ticking that offers a semi-orthopaedic comfort level to allow you to sleep a good night's sleep.