Bluff City Bedding: This super soft ultimate 1800 series luxury fiber blend bed sheet set is breathable, comfortable, and simply amazing. The extra deep pockets (18 inch) of these 4-Piece sheets fit oversized mattresses, thinner mattresses, and everything in between. Enjoy luxury comfort with these amazingly soft and cozy bed sheets. The double-brushed FiberBlend material is perfect for an extra soft feel that will keep you cool in the summer and warm in the winter. The elastic is designed to be extra thick and hug your mattress to prevent the corners from coming up! The sheets are designed to feel exactly like cotton without any of the downsides.