lucid 6" dual layered memory foam mattress, multiple sizes: this low profile mattress has a firm feel and offers great support features a 2" comfort layer of pressure-relieving memory foam and a 4" high density foam base a great choice for children or people searching for a firm mattress with superior back support premium memory foam quickly conforms to body weight and position helps relieve shoulder, neck and back pain by supporting the body's natural curves helps to correctly align the spine, improving posture and preventing lower back pain has a removable, washable cover made from breathable rayon from bamboo fabric the foam in this product is certipur-us certified safe for children, it contains no formaldehyde, harmful phthalates or pbde flame retardants mattress is compressed, rolled and packaged in a box for easy shipping and convenient set up. 10-year warranty beds sold separately . See our assortment of beds . bed frames sold separately . See our assortment of bed frames . great for platform beds. Requires foundation or box spring with standard bed frames. foundations sold separately . See our assortment of foundations .