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Reactex® System - Serta's exclusive Reactex® System consists of three layers of cooling technology. Each cooling layer has more cooling capacity than the previous layer, so heat is pulled away from your body and deeper into the mattress. The result is cool, comfortable sleep all night long.
Deep Reaction® Max Gel Memory Foam - This highly-dense memory foam has both cushioning and conforming qualities for comfortable deep-down support.
CustomFit™ HD Memory Foam - Premium, high density memory foam conforms to your body for comfortable support all night long.
Serta® Micro Hybrid Coil™ - This is a unique layer of micro-coils designed to work in sync with the memory foam layers around it. As you lie down, these coils closely react to every contour of your body, aiding the transition between relaxing comfort and all-night support.