Butterfly's Bulk Crib Sheets, the perfect solution for preschool or child-care classrooms! These fitted sheets are made of a high-quality blend of 50% cotton and 50% polyester fabric, ensuring comfort, quality, and protection for your little ones. These sheets are designed to perfectly fit Compact Crib Mattresses that are 3" thick. Sheets ship fast and free, and are proudly Made in the USA. Get yours today and provide a cozy and safe sleeping environment for your young students