baby crib mattress cover

Many covers include a waterproof barrier or backing that blocks liquids and wetness. Product descriptions mention breathable polyester layers and some explicitly state a 100% waterproof barrier to stop leaks while allowing some breathability.

Most options are sized for standard crib mattresses (28" × 52") and list maximum mattress depths that typically range from about 6 inches up to 22 inches, depending on the specific product.

Shoppers and product notes commonly describe covers as soft, plush, and cushioned. Some descriptions specifically emphasize quiet, non‑crinkling materials to reduce noise.

Beyond waterproofing, covers commonly offer stain‑repellent treatments and allergy‑protection layers. Some encasements also advertise bed‑bug and allergen protection.

Listings commonly use 100% polyester, 100% organic cotton, and 100% cotton. Some covers also include polyester filling or a TPU‑coated polyester backing to provide waterproofing.

Most covers are machine washable and many note they can be tumble‑dried. Some product details specify line drying or laying flat to dry.

Some listings show certifications such as GOTS (Global Organic Textile Standard) and OEKO‑TEX STANDARD 100 in the product details.