The DaVinci Deluxe Coil Firm Support Mini Crib Mattress is designed with 50 coils and polyester fiber fill for an extra firm sleeping surface that is GREENGUARD Gold certified so your baby can sleep safely and comfortably. Parents can easily change crib sheets with this lightweight mattress that weighs only 7.5 pounds. This mattress features a waterproof and tear-resistant cover that will stay new through years of use.