Polyester Includes Two Knit Crib Sheets – Each set comes with two soft, stretchy crib sheets designed for durability, comfort, and everyday use. Fits Standard Crib Mattresses – Sized to fit most standard crib mattresses (28" x 52") with elasticized edges for a snug, secure fit. Soft & Breathable Fabric – Made from a cozy polyester-spandex blend that’s gentle on baby’s skin and allows for a comfortable night’s sleep. Easy to Clean – Machine washable and dryer safe for fast, convenient cleanups—perfect for everyday messes and accidents. Adorable Wildlife Prints – Features a fun, multi-color safari animal and geometric print that brings a playful, unisex style to any nursery.