The Bedgear M2 Firm California King Mattress provides satisfyingly firm and elevated support to your core and key pressure points, without sacrificing comfort. The unique combination of our Boost, Boost-X, and React specialty foams allows air flow in, around, and throughout the mattress, which is further enhanced by our Air-X ventilating side panels, while the Dri-Tec fabric surface wicks away moisture. CFM Certified and measured for optimal air flow. Air-X ventilated panels ensure maximum air flow. 10 Year Warranty.