PEP-STEP Memory Foam Mattress Topper, 4'' Thick Cooling Gel, Memory Foam Topper Adaptive Pressure Point Relief, Support Ultra Breathable Gel Technology, King Adaptive support, extreme sleep comfort with our innovative 4 inch king memory foam mattress topper Ultra breathable design, ultra-breathable comfort, specially designed to allow heat and humidity to flow away from the body Hypoallergenic, ensuring the topper always stays clean, cool and fresh for years New design, memory foam composition is best in class ultra soft, airy and responsive