PureBliss&reg; Premier Memory Foam Mattress - Twin extra long 9". Free water-proof Mattress Protector. Made 100% in the USA (not just assembled in the USA) TruCell Memory Foam with activated carbon infused + Coolest memory foam in the world with patented technology on the shape of the molecules Waterproof mattress cover included 9" thick - 3" 4lb memory foam + 20 year warranty!