[NO SEAMS - FITS ALL 54 "X29.5" CRIBS&TODDLER BED] We use hand sewing techniques to provide a tight fit to the crib every time. No risk of unsafe space or losing pacifiers, toys on either side or corner of this crib.【High-standard mattress】It meets flammability, lead, phthalate, and CPSIA testing standards and contains no toxic flame retardants. Meets 16-CFR-1633, 16-CFR-1632 and 16-CFR-1241 federally mandated standards. [SAFE - COMFORTABLE - DURABLE] Made of sturdy premium foam with soft and moderate rebound. Better support and stability when baby rolls over, preventing baby from causing the edge to sink and preventing the risk of body injury and suffocation [QUIET AND ODORLESS] The brushed fabric is soft and warm. Keep your little one cool in summer and warm in winter. With good anti-disturbance, moisture absorption and breathability, no odor, no noise, effectively improve the quality of sleep [SWEET GIFT OF A GOOD NIGHT’S REST]Standard full size cribs and toddler beds，gift for boys & girls baby shower, 1st birthday, nursery, holiday, housewarming & other special occasions [100 Points Service]If you encounter any problems during use, please contact us by pressing the “Contact” button. Tiankehan is committed to providing you with 100% satisfactory customer service. Meet all U.S. safety testing standards, with SGS testing certification, you can give your child peace of mind and safe use of this baby crib mattress