DESIGNED FOR GROWTH | FIRM SIDE FOR INFANTS & SOFT SIDE FOR TODDLERS: This dual-sided pack n play mattress features a scientific design to support your baby through different growth stages. The firm white side, made of high-resilience, dent-resistant high-density foam, provides essential spinal protection and superior support for newborns (0-9 months). The soft blue side uses cool gel memory foam to create a cool, soft, and comfortable sleep and play surface for toddlers (9+ months). SAFETY FIRST, CERTIFIED ASSURANCE | PEACE OF MIND WITH EVERY SLEEP: We make no compromises on safety. This product is rigorously tested to meet CPSC & ASTM F2933-21 safety standards and is certified free of lead, phthalates, and heavy metals. It has undergone stringent third-party lab testing to ensure it is free of fiberglass and chemical flame retardants. You can have complete confidence letting your baby sleep or play on a mattress that's built to protect their healthy development. PRECISION FIT, NO GAPS | 38"x26" STANDARD SIZE & NON-SLIP BOTTOM: Measuring a standard 38"x26" with rounded corners, this portable playard mattress guarantees a snug, "No Gaps" fit in mainstream Pack and Plays and play yards, eliminating entrapment hazards. Crucially, we’ve added a non-slip bottom design to ensure the play yard mattress stays firmly in place, providing a more stable and secure environment for your active baby. PREMIUM JACQUARD COVER | WATERPROOF, BREATHABLE & EASY TO CLEAN: The cover is crafted from a high-quality jacquard fabric that is exceptionally soft and skin-friendly. Unlike basic covers, ours features a waterproof lining to effectively block urine leaks and spills from ruining the foam core. A durable zipper allows for easy removal and machine washing, keeping the sleep surface fresh and hygienic. LIGHTWEIGHT & TRAVEL-READY | INCLUDES CARRY BAG: Weighing only 3.75 pounds, this versatile travel crib mattress is lightweight and portable. It features a trifold design that fits perfectly into the included travel bag, making it the ideal choice for travel, camping, or visits to family. Thanks to its non-slip bottom, it can also be used directly on the floor as a safe and comfortable dedicated play mat.