The Stearns & Foster® Lux Hybrid Collection is a new era of comfortable cool sleep featuring our exclusive IntelliFlex™Hybrid System-only available in Stearns & Foster® Lux Hybrid mattresses-which adds a layer of our signature memory foam to the top of each innerspring, creating hundreds of individual, supportive and flexible pockets that provide unsurpassed flexible support for every curve, plus the added benefit of hundreds of breathable air channels for all-night cooling.