Experience the ultimate comfort and support with the J. Queen Regency 300 TC Cotton Allergen Barrier Mattress Topper. Made with 100% cotton and a plush 300 thread count, this overstuffed mattress topper provides a cloud-like sleeping surface that's cool and dry. Featuring NuAir™, an allergen-barrier fabric, this topper guards against dust mites, pet dander, pollen, and other allergens for a healthier sleeping environment. The hypoallergenic fiberfill offers superior support and a silky smooth surface while the 2" gusset on all sides adds loft, support and breathability. The box quilted design ensures that the fiberfill stays in place. With a 4-way deep pocket stretch skirt, this topper fits mattresses up to 21" deep. Available in Twin, Full, Queen, King and Cal King sizes.