IDEAL FOR STANDARD CRIB MATTRESS - This crib mattress cover measures 27”x52”x5’, and can fit a crib for one large dog, or many small ones. SUSTAINABLE -Turn your old baby crib mattress into a fancy dog bed with our crib cover. By reusing your old crib mattress, you are reducing your carbon footprint. 100% COTTON - Our range of crib mattress covers is curated from 100% high-end quality cotton to make it comfortable and breathable for your furry friend. MACHINE WASHABLE - These crib duvet covers are fully machine washable, and are made from azo-free true reactive dye stuff that not only creates beautiful colors, but also resists fading. NO HARMFUL INGREDIENTS -We never use any harmful pesticides, phthalates, or PBDEs, so, this washable crib cover is safe to use for your four-legged friend.