Down Alternative Mattress TopperThree inches of plush, hypoallergenic down alternative fill encased in pure cotton create a cozy, breathable mattress topper. Baffle box construction prevents fill from shifting to ensure even loft. Thick elastic anchor bands secure the fiberbed to the mattress at the corners. Product Features 3 Inch Down Alternative Mattress Topper Three inches of plush, hypoallergenic down alternative fill encased in pure cotton create a cozy, breathable mattress