The cot sheet is made of high-quality cotton muslin. It is characterized by high strength and smoothness. The elastic band used will make the sheets fit the mattress, protecting the child from contact of his skin with the polyester cover most often used for mattresses. The manufacturer informs that the colors shown in the picture may slightly differ from the actual product. Shades of prints and fabrics may differ depending on the production batches, therefore it is not a manufacturing defect.