Experience unparalleled comfort and support with the Ghostbed 3D Matrix Cal King 12" Mattress. This California King mattress, in a sophisticated white and grey color, is crafted with exclusive patented 3D polymer technology and a 3D matrix gel layer, ensuring a restful night's sleep. The combination of gel memory foam, Ghost Bounce latex, flex transition foam, a caliber edge innerspring coil unit, and a high-density base provides a perfect balance of softness and support.