Features: This amazing mattress is hypo-allergenic and dust-mite resistant. Sizes: Available in 3ft, 4ft, 4ft, 5ft and 6ft. Open Coil: The 13.5 gauge open coil spring system provides support for your body weight while you sleep. Layer: Includes an extra layer of memory foam for added comfort. Product: Treat yourself to this Essential Memory Spring Mattress! Perfect: In promoting good blood circulation and helps to relieve pressure points across the body.