What’s included in a sheet set? February 18, 2021 18:19 Updated 1 x fitted Sheet 1 x flat Sheet 2 x pillowcases (Twin / Twin XL / Full / Queen sheets include standard size pillowcase; King / CA King include king size pillowcase)*Twin/Twin XL sheet sets include one pillowcase Related articles What is a sateen weave? What materials are the sheets made from? How long will the sheets last? What materials are used in the Birch Organic Pillow? How does the 100 Night Sleep Trial work?