All Season Reversible Hypoallergenic 1.5" Cooling Mattress Topper B035951211. 5" 100% Gel Memory Foam adds an instant layer of comfort to your mattress Unique Convoluted design provides maximum airflow and breathability Reverses to a flat sleeping position Cooling Gel provides optimal temperature control and sleeping comfort Pressure relieving comfort relaxes muscles Naturally Antimicrobial and hypoallergenic Spot clean Comes efficiently compressed; simply unbox, unroll and this topper does the rest, expanding to its