A mattress that can stay with your child through their toddler years, the Naturepedic Ultra Breathable 2-Stage Organic Crib Mattress is a safe, comfortable choice for your child. The Naturepedic Ultra Breathable 2-Stage Organic Mattress starts with a firm, flat mattress for safety then adds a breathable mattress pad to keep your child cool and dry. The first side is firm, for infants, and you can flip the mattress to the cushion firm side as they grow into toddlers. This mattress’ intelligent, organic design is free of flame-retardant chemicals and other questionable materials often found in mattresses. Naturepedic’s combination of organic, breathable, and practical makes this mattress a healthier, safer crib mattress than conventional breathable designs. Check out our blog for more info on dual firmness crib mattresses here. Features: Includes breathable mattress pad Breathable for safety and comfort Organic cotton with wipe-clean waterproof surface, organic cotton filling Firm, comfortable support Seamless waterproof edges Allergen-friendly design: Built in dust mite/bed bug barrier and free of latex and soy 2-Stage dual firmness: Firm side for infants and cushion firm side for toddlers Fits standard size cribs, toddler beds, and day beds Passes all federal and state flammability standards without the use of any fire retardant chemicals or chemical flame barriers Organic and GreenGuard Gold Certified Made in the USA with a Lifetime Limited Warranty Dimensions: 52L x 28W x 6D.