Women across America voted and Safety 1st earned the title of America's Most Recommended™ brand for Crib & Toddler Mattress. Get ready for a peaceful night of sleep with the Safety 1st Peaceful Lullabies crib and toddler bed mattress, made with cotton, polyester and wool fibers. Whether it's used in a baby crib or toddler bed, your baby gets the firm support needed thanks to a high-density thermo-bonded core. Plus, the outer removable cover is made from polyester and rayon from bamboo that not only is machine washable, but also provides top comfort. The Safety 1st Peaceful Lullabies crib and toddler bed mattress is designed resilient to last all through babyhood and beyond. You have one less thing to worry about thanks to this Safety 1st mattress which is made without the use of flame retardant chemicals, it is assembled in Canada, and comes with a 15-year limited warranty. This mattress has achieved GREENGUARD Gold Certification. GREENGUARD Certified products are certified to GREENGUARD standards for low chemical emissions into indoor air during product usage.