Milliard Hypoallergenic Kids Crib Mattress Protector - European Size - 24in.x47in.x6in. 80% Cotton Defends against liquids, bacteria and dust mites Provides relief for allergy and asthma sufferers, and protects against allergens, dust mites and bacteria Makes no noise that interferes with sleep Fitted sheet style fits around mattress while allowing ventilation Extra Soft 80% Cotton, machine washable. Measures 24" x 47" x 6"