The Napoli 1200 is part of Sealy’s posturepedic Silver Pocket Collection and has been endorsed as a "Which best buy". Featuring 1200 individual pocket springs for remarkable, individual support, the Napoli is encased in a unicase border to protect the springs and prevent the mattress from sagging. Featuring a deep layer of Innergetic latex resting on top of the pocket prings, the cover is finished in temperature-regulating, anti-microbial Tencel fibres for a cooler, fresher night's sleep.