Provide a comfortable sleep environment for your baby with our Babyletto Pure Core Mini Crib Mattress. Combining two covers in one—a soft, quilted cotton outer layer and a non-vinyl, waterproof backing—the removable hybrid cover protects the firm, supportive mattress while keeping your baby comfy. The zipper closure and square corner design ensure a seamless sheet fit. The GREENGUARD Gold Certified mattress is hypoallergenic and free of chemical flame retardants, with a lightweight, small-scale design made to fit Babyletto mini cribs.