Boyd Specialty Sleep Gel Rest™ Memory Foam mattress. Temperature neutral MicroTec Gel™ enhanced memory foam used in Gel Rest™ products provides targeted contouring support and great cooling effect. Only Boyd combines cooling gel-infused memory foam with exclusive, patent pending STAY COOL channel venting to increase comfortable air flow and circulation. MicroTec Gel™ enhanced memory foam is placed at or near the top of the mattress to achieve the maximum cooling benefit. Every Gel Rest™ mattress features stretchable, contouring poly-cotton blend cover that has a unique tone-on-tone pattern. Tastefully styled, micro-suede accent provides a modern appeal.