Nook Fitted Crib Sheet in BlueOxygen is added to the blend of soft, silky eucalyptus and certified organic cotton, eliminating any dirt and residue that clog natural fiber airways. The luxurious feel of this bed sheet is sure to have baby dreaming sweetly. Mix and match the bright patterns of Nook Fitted Crib Sheets for a more breathable, non toxic and beautiful crib. Non toxic Organic Measures 53 x 28 x 8'' Machine wash