Our Aireloom Preferred Collection brings together innovative design with the next generation of materials to guarantee you the best sleeping experience. Built on our patented Aireloom Lift™, our Preferred collection allows the natural sleep chamber between the springs and the mattress top to breathe and perform at its best. When the springs meets the layers of luxury materials, the bed completely synchronizes with your body. It can only be described as a lift. Where other mattresses stay flat or sink in, only Aireloom® has the patented Aireloom® Lift™. Handmade by our master craftsmen, the Streamline™ Extra Firm combines all of the classic components of an Aireloom bed, like our individually wrapped coils, high-performance foams and breathable Tencel knit cover, with an extra level of resilience. This model offers a firmer feel that lets you float on the surface for those who want extra support. Features •Expertly handcrafted •Exclusive patented Aireloom Lift™ •Multiple comfort layers of high-density foams, CelsionPLUS™ Talalay Latex and natural fibers (wool, silk, cotton) offer exceptional body contouring, pressure-point relief and ideal body temperature •CelsionPLUS™ Talalay latex helps the body maintain a consistent body temperature throughout the night while experiencing the comfort, pressure relief, breathability, and health benefits of natural Talalay latex. •Top panel covered in Ultra Conforming Knit with Tencel® for a cushioned surface, a smooth touch and skin-sensitive feel •Over 36 hand outer tufts for an enhanced durability and a unique luxurious look •Support-flex™ tempered 13 3/4 gauge individually wrapped coils that perfectly contours to your body without distributing the movement throughout the mattress •High density foam encasement for a superior edge support •Meets federal fire-retardant safety standard •Designed for use with Aireloom foundations •Compatible with adjustable bases •10-Year Limited Warranty Dimensions •Twin: 75 inches long x 38 inches wide x 14 inches high •Twin XL: 80 inches long x 38 inches wide x 14 inches high •Full: 75 inches long x 53 inches wide x 14 inches high •Queen: 80 inches long x 60 inches wide x 14 inches high •King: 80 inches long x 76 inches wide x 14 inches high •California King: 84 inches long x 72 inches wide x 14 inches high •Split California King: 84 inches long x 36 inches wide x 14 inches high