The Dunlopillo Hybrid Den mattress has 1090 pocket springs as well as a deep layer of natural Dunlopillo latex. These pocket springs work in conjunction with the latex, offering support as well as superior comfort. The springs move up and down like pistons, carefully and precisely moulding to the contours of the body, giving support and comfort equally as well as encouraging better posture. The springs are designed to hold the body in the best position possible, relieving aches and pains as well as enhancing rejuvenation after a long day.