The Sopora Premium Crib Mattress is a 5 inch deep, all foam mattress with dual sleep surfaces. It is everything you need in a mattress with a great price. Made with CertiPUR-US and GreenGuard certified foam, this mattress is engineered to withstand wear and provide ergonomic support for the full span of your baby's crib mattress use. As your child develops, the density required of their sleep surface can change. For infants, use the Eco-Friendly ultra firm, high-density foam side. Eco-Friendly Foam was developed by industry leaders to deliver cleaner foam. All Eco-Friendly products utilize a blend of natural oil based and conventional polyols. Natural polyol is made from natural plant based renewable oils. This blend enables Eco-Friendly foam to perform as well as conventional foam without sacrificing comfort and helping the environment at the same time. As your child grows, flip the mattress to the Eco-Friendly, firm, high density foam toddler side. The Premium Crib Mattress offers Baby Safe side sewn seams, joined with a super fine thread, which is then inverted, double folded and reinforced with nylon backing. This innovative technique provides the tightest, strongest, and cleanest sewn seam in the market. The Baby Safe seam will keep bed bugs, dust mites and fluid leakage out, keeping the inside of the mattress clean. Baby Safe seams are dropped to the sides of the mattress creating a seamless waterproof edge with no decorative cording or holes on the surface. This eliminates entry points for allergens, bed bugs, and fluid leakage. This mattress has square corners and edges to fit tightly into the crib, with no surface designs that can trap dirt or dust mites. The rectangular shape of the mattress, the same shape as the crib, hold sheets tight to keep baby safe. The Premium's outer cover is a medical grade, coated nylon that is compliant with all current safety standards. Its lightweight and pliable nature enables the baby's body to conform to the surface while allowing the inner construction to provide comfort and ergonomic support for which it was designed. The cover is free of vinyl, PVC, phthalates and lead. Treated with Ultra-Fresh for antimicrobial protection. It cleans easily with a damp sponge and won't retain unpleasant odors or stains. Features: -Foam mattress with dual sleep surfaces.-Made with CertiPUR-US and GreenGuard certified foam.-Eco-Friendly ultra firm, high-density foam side.-Flip the mattress to the Eco-Friendly, firm, high density foam toddler side.-Waterproof edge with no decorative cording or holes on the surface.-Square corners and edges to fit tightly into the crib.-Rectangular shape of the mattress.-Medical grade, baby soft, premium stretch knit fabric.-Cover with free of vinyl, PVC, phthalates and lead.-Treated with Ultra-Fresh for antimicrobial protection.-Cleans easily with a damp sponge and won't retain unpleasant odors or stains.-Distressed: No.-Country of Manufacture: United States.Dimensions: -Overall Product Weight: 7 lbs.