The Knighthood Plush Euro Top mattress by Sealy have more cushioning foam, encased coil and added support where you need it most, for superior comfort and full-body support. This mattress features durable knit fabric with spun yarns for a soft feel next to your body, SealyComfort™ foam, Sealy StabilityPlus™ coil to deliver just-right comfort and support for years to come, CoreSupport™ center, StableEdge system and high-density, flexible border surrounding the mattress for better edge support, more usable sleeping surface and improved durability.