Direct from Manufacturer, SLEEPREST Microfibre Mattress Protector for more comfort Feel- White- Premium Hollow mattress Protector makes your mattress top super soft, give new shape and absolutely new life to your old sagged Mattress. Boosts the comfort of your mattress, rejuvenates your mattress. Elasticized with elastic band for perfect fit on mattress. Elastic Strap on all four sides to get that perfect fit. Box Stitched so that the topper spreads evenly.