With the Ultra-Loft Down Alternative Mattress Topper from Casaluna™, you can protect the top of your mattress while adding even more welcoming and supportive softness to your bed. This 2.5-inch-thick mattress topper is designed with a firm down alternative fill for a soft feel that you can sink into after a long day. End-to-end and baffle-wall quilting help keep the fill evenly distributed for lasting use, while fitted elastic on all four corners keeps this down alternative mattress topper in place so it doesn't slide around when you top with your sheets and other bedding.