Bringing in a new level of cool, comfortable sleep, the Stearns and Foster Lux Hybrid Soft Mattress contain the IntelliFlex™ Hybrid System. This exclusive technology combines traditional innerspring and memory foam to give you complete support and comfort that cradles your body. It also has air channels that give you night-long cooling. Developed by sleep experts, the TEMPUR-Indulge™ Memory Foam Comfort Layers help give you sublime pressure relief, support and comfort. The moisture-wicking mattress cover is made with silky soft, sustainable TENCEL® and augmented with cooling Phase Change Material that feels refreshing from the minute you get in bed until you wake up in the morning.