Featuring a 2.5" comfort layer of gel-infused memory foam, this California king mattress topper offers superior cooling and provides relief from heat and sleeping pressures. Utilizing a pin-core design, the gel memory foam is ventilated to increase airflow and regulate sleeping temperature. The soft, supportive consistency of the memory foam quickly conforms to the body, cushioning hips and shoulders. Protecting the topper is a super-soft, removable rayon from bamboo cover ensuring a cooler sleep temperature. Gel-infused cooling Ventilated for increased airflow Conforming support with cooling gel 2.5" thick gel-infused memory foam offers superior cooling Ventilated to increase air flow and regulate sleeping temperature Soft, supportive consistency quickly conforms to the body Super-soft, removable rayon from bamboo cover