The Dream On Me 2-In-1 Breathable Two-Sided 3" Portable Crib Mattress is a must-have nursery accessory in smaller homes and apartments. Designed to fit portable/mini cribs, this made-in-the-USA mattress is Greenguard Gold certified and meets/exceeds all flammability (16 CFR 1632/1633) standards. The Dream On Me 2-In-1 Breathable Two-Sided 3" Portable Crib Mattress comes with a firm core of 3” interwoven steel coils that are wrapped in a CertiPUR-US certified layer, offering the perfect blend of support and comfort. It features a reversible design: an infant side covered with breath flow material and a toddler side with a waterproof cover and lockstitch binding that keeps out liquids and stains, creating hygienic & safe sleeping conditions. The Dream On Me 2-In-1 Breathable Two-Sided 3" Portable Crib Mattress weighs 8 Lbs.