At 30cm deep, the MLILY Bamboo Plus Serene mattress is one of the most luxurious and technologically advanced on the market. Multiple layers of specially developed foam perform a variety of roles from providing comfort and support through to regulating the temperature and moisture content of the mattress to create a fresher, more healthy sleeping environment. 2500 individually pocketed springs are supported by a further layer of 2000 mini springs, which adapt and respond to your body�s micro movements all night long. The result is 100% comfort and support whether you sleep on your front, your side, or your back.The MLILY Bamboo Plus Serene has a medium firmness rating providing plenty of support but with no compromise on cushioning and comfort. The multiple layers of Flex Support and Flex Comfort foam are different densities to respond and mould to the shape of your body. A 5-year guarantee gives you complete peace of mind.If you get hot and uncomfortable at night, the MLILY Nanocool Ice fabric cover is a real revelation. This specially created fabric is specifically designed to maintain a cool, fresh feel across the surface of the mattress � especially useful if you suffer from night sweats or hot flushes. With the inclusion of MLILY�s unique Bamboo Charcoal memory foam underneath as well, which regulates body temperature and wicks away moisture, you�ll wake up feeling fresher and more comfortable every day.Whereas most combination mattresses settle for a single layer of springs, the MLILY Bamboo Plus Serene has two separate layers for even better sleep quality. The core of the mattress is created using a matrix of 2500 individually pocketed springs that respond to every movement you make. Supporting this is a further layer of 2000 Adapt mini springs, which individually adjust to your body�s key pressure points to prevent joint pain and stiffness. It may be only 2cm deep, but that layer of mini springs makes all the difference!To avoid the dreaded side-sagging that many mattresses can suffer from, MLILY has developed a specially designed support border that ensures an even firmness right across the mattress all the way out to the edges. No sagging, and a much larger sleeping area for you to wriggle around on!