"The Pillowcase" has researched and created the most perfect crib sheets for Baby Bedding Sets or Toddler Bed Sets. These Fitted Cot Sheets will fit a Standard Size Crib Mattress or Toddler Bed. We chose a most luxurious soft sateen 100% cotton 500 Thread count fabric for your ultimate comfort. WASHING & CARE INSTRUCTIONS: Machine wash cool water with like colors. Tumble dry low, remove promptly. Iron if needed.