Our Plush Organic Mattress Topper can be used on any mattress of the same size and will provide a 2-inch top layer of pressure relief. It will lay right on the surface and does not need to be secured in any way. Depending on the size, the topper will be 23 to 47 pounds and this weight will keep it firmly in place. The addition of a fitted sheet will also help keep it from shifting on your mattress.