- Overall Length - Head to Toe: 50''
- Mattress Fill Material: Water; Cotton
- Carter's - Waterproof Flannel Mattress Protector - Carters flat crib protector provides extra absorbency and comfort for all your waterproofing needs. Place the pad under your fitted sheet in cribs and toddler beds for extra waterproof protection. 100% Waterproof back protects mattresses from accidents. Fits on top of standard crib mattress.