THE AURA SPRING  is a hybrid mattress made from American Standard BONNEL SPRING Cells and luxurious multi-foam layers to provide an absolute custom fit for your body support. The springs are perfectly enclosed in a light fabric to ensure quiet spring support. This makes the springs relatively softer to cuddle shoulders and hip regions. The foam layers have asymmetrical air channel grooves and ridges that cushion the body curves and circulate air for cooling the sleep surface. Stretch knitted fabric that it comes with has antibacterial antimicrobial properties to keep your sleep environment clean and super hygienic. AURA SPRING has two sides soft sheet to the needs of all kinds of sleepers. Balanced comfort level through this dual side saves one hassle of looking into several options. 10 Years Warranty