This Cool Blue Open Foam Mattress features a traditional coil spring system accommodated with Cool Blue Memory foam. This new process of manufacturing offers a maximum spinal support as well as eliminating rolling together so that you and your partner can receive a well rested and undisturbed night's sleep. The Cool Blue Open Coil Mattress has excellent heat reduction and breathable properties allowing the mattress to breathe and keep fresh, it is also hypo-allergenic, anti-bacterial and has anti-dust mite qualities. Providing a sleep environment that guarantees night after night of blissful sleep.