The Beautyrest Sleepy Whispers Ultra Deluxe 2-Stage Crib and Toddler Mattress from Simmons Kids is made with your little one's comfort and safety in mind. The two-stage design of this baby mattress provides the ideal firmness for newborns on one side, and an additional layer of comfortable foam for toddlers on the other side, plus it features a firm core with 190 pocketed coils and plant-based soy foam corner protectors that deliver balanced support. This mattress also boasts a natural fire protection wrap and superior woven fabric cover that features a waterproof barrier. Plus, this mattress is GREENGUARD GOLD and CertiPUR-US certified, so you can rest easy knowing it delivers the safest possible environment for your child.