Jersey,cotton Perfect Fit & Secure Coverage: Made from 100% Cotton Jersey and measuring 27” x 39” with a depth of 4 inches, our Pack N Play Playard sheets snugly fit most standard pack and play mattresses and mini crib mattresses. Soft, Breathable Cotton Comfort: Crafted from high-quality Cotton Jersey, our fitted Playard sheets offer a soft touch and excellent breathability, providing a cozy and comfortable sleep environment for your baby without irritating their delicate skin. Quality Cotton Jersey Design: Crafted from premium 100% Cotton Jersey, these sheets prioritize your baby's comfort and safety. With a snug fit and durable, machine-washable fabric, they maintain quality, lasting shape, and enduring durability. Effortless Installation & Durability: Featuring a full elastic band, these sheets are easy to install and remove from the mattress. The durable band around the edge keeps the sheets securely in place, reducing the need for frequent adjustments. Practical Nursery Essential: Comfy sheets in various colors to match any decor.. Crafted for both boys and girls, these sheets are a practical choice, ensuring better sleep for your baby day or night.