Perfect Fit: Designed to fit standard 28” x 52” crib and toddler mattresses snugly. Ultra-Soft Fabric: Made from 95% viscose bamboo for a luxurious, silky feel that’s gentle on your baby’s delicate skin. Stretchy Comfort: 5% spandex ensures a flexible, secure fit on various mattress depths without slipping or bunching. Breathable and Temperature-Regulating:Bamboo fabric naturally wicks moisture and regulates temperature, keeping your baby cool in summer and warm in winter. Hypoallergenic and Eco-Friendly:Bamboo is naturally hypoallergenic and free from harsh chemicals, making it ideal for sensitive skin. Easy Care: Machine washable and durable, these sheets maintain their softness and shape wash after wash.