Product Features • Protect-A-Bed’s Miracle Layer is soft and comfortable yet waterproof and breathable. • Protecting your mattresses and pillows from moderate spills and stains. • Protecting you and your family from dust mites, mold, and bacteria allergens. • 100% smooth polyester sleep surface, perfect for everyday family use. • 100% Polyester Pique Expandall fitted sheet style. • Fits all standard and extra deep mattresses. • Electric blanket safe.