Standard Size: Our pack and play mattress boasts a size of 38 x 26 inches, which fits the majority of standard cribs, effortlessly creating a safer, more comfortable sleep environment tailored for your little one. Exquisite Patterns：The crib mattress features light blue starfish and seashell patterns, like gentle seabed scenery softly laid out. With low-saturation hues and balanced spacing, it feels fresh, tranquil, and secure—letting babies rest peacefully in a naturally charming atmosphere. Comfortable & Easy-Care: Our pack n play mattress surface cover features soft, breathable fabric. It has a convenient zipper, enabling easy detachment and machine washing—so you can quickly clean stains or messes to keep your baby's space fresh and hygienic. High Quality Foam: Our crib mattress foam is made of CertiPUR-US certified high-quality foam and meets CPSIA safety standards, providing comfortable support for your baby's body and ensuring a restful sleep or happy playtime. Non-Skid Base: Our crib mattress is specially designed with an anti-slip bottom to reduce shifting and keep it in place, ensuring your baby's sleep remains undisturbed.