Product details:

The Serene Duo-Sleek 2-Stage Crib Mattress and Toddler Mattress is a grow-with-me dual firm baby mattress made from lightweight, airy cushioning. It has a sustainable design made with a core derived from Earth-friendlier, upcycled materials tested for safe use with infants and toddlers. The tagged side is firmer and then you can flip it over for a cozier toddler side. A reinforced pearl-embossed waterproof and stain-resistant cover wipes clean and is durability tested for lasting use. Measures 52 x 28 x 6 inches for a secure fit plus square corner design snug corner fit. An airflow pocket designed into the bottom of the cover helps the mattress to breathe. It meets ASTM Crib Mattress standards for safety, quality and lasting durability. All crib mattresses are GREENGUARD GOLD Air Quality Certified for a healthier indoor sleeping environment. Parents trust crib mattresses because they are tested to the highest safety and quality standards and is globally recognized as a premier brand in bedding for almost 140 years. Parents voted as their favorite Healthiest Crib Mattress brand.