Ideal for planet savers. The Silentnight Eco 800 Pocket Mattress features their Mirapocket spring system, allowing you to react independently to your movement for zoned support and comfort. Scientifically proven to improve posture, 800 pocket springs also offer edge-to-edge support that gives you greater sleeping space. This mattress is medium firm, which is perfect for back and side sleepers. It has a little bit of give, but includes an extra layer of support. Medium feel. Pocket sprung with pillowtop layer mattress with 510 springs. Knit cover with micro quilt finish. No roll together. Mattress size W90, L190, D27.5cm. Rotate mattress regularly. Made in the UK. Package Dimensions:Package 1 dimensions: H27.5, W90, D190cm. Package 1 weight: 18kg. General information:Manufacturer's 5 year guarantee. EAN: 5037892412494.