Mini Crib SureGuard Mattress Protector - 100% Waterproof, Hypoallergenic - Premium Fitted Cotton Terry Cover for Portable Pack n Play - 10 Year Warranty cotton 100% Waterproof - Top protection against everyday liquids and stains; 10-year quality guarantee - Great baby registry gift for expecting moms Hypoallergenic - Blocks dust mites, allergens, bacteria, mildew and mold - Free from Vinyl, PVC, Phthalates, fire retardants and other toxic chemicals Soft & Noiseless - 100% cotton terry surface; Wicks away moisture; Retains the feel of your child's portable mattress Durable & Easy to Clean - Machine wash & dry - For frequent accidents, buy 2 or more - while one is washed, the other protects the mattress Mini Crib Mattress Protector (27 in x 39 in) - Fitted Sheet Style with stretchable skirt; Fits all Pack N Play, Dream on Me (3" or 5" deep), foldable and portable crib mattresses. Independently lab tested and GREENGUARD Gold certified.