This Pointehaven 240TC cotton percale cover down alternative hypoallergenic mattress Pad has diamond quilt design all around. The cotton Pad cover has elastic around the side of the Pad to cover up to 20" mattress. The mattress Pad has 270 GSM soft down alternative polyester fill and can be used year round. This mattress Pad is made with cool percale cotton breathable fabric and is hypo-allergenic and is an ideal choice to protect luxury mattresses. The elastic on the sides of the Pad can cover up to 20" Mattresses. The mattress Pad has down alternative polyester fill and can be used year round. Twin Extra Long mattress Pad fits 39" x 80" - up to 20" deep mattress, Queen mattress Pad fits 60" x 80" - up to 20" deep mattress, King mattress Pad fits 78" x 80" - up to 20" deep mattress, 100% Cotton 240 Thread Count Percale Cover - Breathable, Cooling and Hypoallergenic Diamond Quilted for comfort and elegant look, perfect for keeping expensive mattresses clean and stains free. The cover is machine washable and dryer safe. Please follow the washing instructions on the care label.