Cooling Memory Foam Mattress Topper HELLO SLEEP – LET THE AIR FLOW, LITERALLY – The ups and downs and in-betweens of this specially engineered, cooling gel-infused topper promote airflow throughout its conforming memory foam layer to dissipate heat while providing superior softness and comfort A COOLING EMBRACE – This 1.5 inch layer is constructed with supportive memory foam swirled with cooling gel; fits under any standard or deep pocket fitted sheet CERTIPUR US CERTIFIED – Highest quality Cooling Memory Foam Mattress Topper foam is CertiPUR US Certified for durability, performance, and content