Rest easy with the Super-Loft 3 in. Down Alternative Mattress Topper by LoftWorks on your bed. Choose from available sizes to match your mattress and bed frame and sleep better than ever before. The smooth microfiber of this mattress topper is machine washable for convenience, even with the luxurious puff ball fiber fill inside. The clean white color ensures that you won't be able to see this mattress topper through even the lightest of sheets. Straps on each corner wrap around your mattress for easy use and secure nights.