80% Polyester/ 20% Cotton Imported Mattress topper pad offers an added layer of comfort and helps protect the mattress Includes a Twin XL 79.9 x 39 x 17.7-inch mattress topper Poly-cotton fabric for breathability; lightweight hypoallergenic fill that's ideal for allergy sufferers; quilted pockets prevent plush fill from shifting Knitted fabric sides with elastic for a secure fit on mattresses up to 18 inches deep Certified STANDARD 100 by OEKO-TEX, which requires textiles-based products to be tested against a list of 1,000+ chemicals, to limit those which may be harmful to human health Machine wash and dry for easy care; safe for high temperatures