Experience dependable support and balanced comfort with a double bonnell spring mattress featuring firm comfort layers, crafted for those seeking orthopaedic reassurance and a restful night's sleep. Rely on the robust 12.5g Bonnell spring system to encourage better posture and ease pressure on joints, while the quilted 100 percent polyester top delivers a smooth cushioned surface that remains durable night after night. Enjoy the breathability of recycled polyester layers that help maintain a comfortable sleep temperature and a more sustainable lifestyle. With a medium to firm feel, this 4ft6 mattress is perfect for back or stomach sleepers who need extra support, and its rolled boxed delivery means you'll get hassle-free access to your bedroom.