The Better Homes & Gardens 400-Thread-Count Performance Sheet Set is made from 100% cotton with a silky-smooth sateen weave that becomes softer and more breathable with each wash. Designed for year-round comfort it helps keep you cool in the summer and warm in the winter. The durable cotton fabric resists pilling and offers wrinkle-free smoothness maintaining a fresh look even after repeated washes. The fitted sheet features FLEXI-FIT® technology with patented stretch panels to ensure a snug secure fit throughout the night. With classic style long-lasting quality and exceptional softness this sheet set is the perfect addition to any bedroom. Twin XL and California King sizes are available exclusively online.