This hybrid mattress combines the solid support of a pocket spring system with high-quality, plush memory foam for a more restful night's sleep. 10 layers of good materials include jacquard, memory foam, polyester fiberfill, 2 layers of thick foam, non-woven fabric, pocket springs and polyester batting. Covered with a beautifully detailed knitted cover, this mattress features round edges and square patterns for breathability and a soft touch. This memory foam and spring mattress is vacuum-packed and rolled in one portable box for customer convenience. Besides, you can rest assured that this mattress complies with the rigorous flammability requirements of the British Standards (i.e. BS7177 and S.I. 1988/1324). Features: 1.【Upgraded Memory Foam】 With this plush memory foam, you will easily get the benefits of slow rebound, pressure relief and good body countering. We upgraded the foam to make it thicker and allow for better air circulation for improved body support. 2.【Modern