GREENGUARD GOLD certified, the Safety 1st Heavenly Dreams Mattress meets standards for low chemical emissions to provide the safest sleeping environment for your baby. It high density thermo-bonded core provides firm support for your little one as they sleep. This mattress is lightweight and durable for long-lasting use throughout your childs development. Its tear-resistant vinyl cover resists to stains, odors and mildew. In addition, the cover is water resistant and wipes clean easily. Sweet dreams are sure to come quickly with the Safety 1st Heavenly Dreams Mattress! GREENGUARD Certified products are certified to GREENGUARD standards for low chemical emissions into indoor air during product usage.