Evie 9.25″ California King Foam Encased Mattress White And Black 350371KW Nothing sets the tone of the day more than a good night's rest. This mattress delivers on all counts. It boasts a 60° foam encasement, providing perimeter support for increased sleeping surface and stability. Its high-density innerspring composition offers comfort and maximum support. It's the ticket to a clear mind and rested body. Set includes: One (1) mattress Materials: Foam and fiber Fabric color: White and black Assembly required: Yes 360° foam encasement provides perimeter support for increased sleeping surface and stability CertiPUR-US certified foam