Serta - 13" Clarks Hill Elite Extra Firm King Mattress, Comfortable, Cooling, Supportive, CertiPur-US Certified, White/Blue

Contains Serta's PillowSoft Foam: an extra-soft foam that gently contours to the body in order to enhance cushioning and support.

Implements Cool Twist Gel Memory Foam: this unique design features cooling gel swirled into premium memory foam that helps enhance airflow and heat dissipation for cool, contouring type of comfort.

Utilizes Serta's Cool Twist Gel Foam: a cooling gel is swirled directly into breathable foam that is designed to promote airflow and heat dissipation.

Supported by 805 Individually wrapped coils that feature Serta's Best Edge foam encasement technology: this is an extra deep foam rail that helps to support the edges and extend the sleep surface.