Mainstays 200 Thread Count Single Fitted Bed Sheet - Twin (Navy) 1 Twin Fitted Sheet 200 Thread Count. Easy Care, Cotton Rich - Ring-Spun Yarn for Extra Softness. 39 inch X 75 inch X 12 inch, 60% Cotton, 40% Polyester. Fits Mattress up to 14 inches deep. Machine Wash Warm with Like Colors, Do Not Bleach, Tumble Dry. Made in Pakistan.