IMECO4000EK Size: Eastern King The 4" Eco Lux Gel Topper provides you with renewed support and comfort. Gel is infused into the memory foam allowing you to sleep cooler than a traditional memory foam topper. 1.5" of gel infused pressure sensitive memory foam over 2.5" of support foam contours to your bodies shape reducing pressure points providing added comfort. Unlike most toppers, the 4" Eco Lux Gel Topper includes a plush 100% Rayon Fabric from sustainable bamboo cover for a comfortable night"s sleep. Features: -Removable 100% Rayon fabric from Sustainable Bamboo Fiber. -Eco-Friendly Foam. -1.5" Gel Infused Memory Foam. -2.5" Support Foam Base. -5 Year Limited Warranty.