NapQueen Victoria 10 inch Cool Gel King size Hybrid Mattress ideal for side and back sleeper. Designed for quality and comfort for your best night’s sleep at an affordable price. The NapQueen Victoria 10 inch Cool Gel King Size Hybrid Mattress features 360 individual power packed wrapped edge to edge zone support coils. A layer of Cool Gel Memory Foam delivers all the pressure-relieving properties of memory foam with cooling gel infusion for a cooler sleep surface, letting you wake up refreshed. The CertiPUR-US certified polyurethane foam is made without harmful chemicals. The NapQueen Victoria Cool Gel King Size Hybrid mattress is compatible with an adjustable base frame.