The Sopora Delux is a modern luxury youth mattress with a practical edge. Offering all the features of the Sopora Ultimate, the Delux only differs on the dual sleep side. The Delux is a 7.5" deep, all foam mattress with dual sleep surfaces. Made with CertiPURUS® certified, and GreenGuard® Children and Schools certified foam. The Delux is engineered to withstand wear and provide an even ergonomic support. As your child develops, the density required of their sleep surface can change. Which is why we offer two sleep surfaces. One made of Eco-Friendly ultra-firm, high-density foam. Eco-Friendly foam was developed by industry leaders, to deliver cleaner foam. Eco-Friendly foam 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. The other side of the mattress offers Support Soft high-density foam. Support Soft provides a layer of foam, which is plush in feel and luxurious. The enhanced airflow of this foam creates better air circulation at the surface of the mattress. Support Soft foam has a high level of resilience (bounce back) and high level of durability. The Delux offers ultrasonically welded, dropped side seams to keep wetness out, allowing the inside of the mattress to stay clean. Welded 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. The Delux offers square corners and edges to fit tightly into the crib, with no rounded corners or surface designs that can trap dirt or dust mites. The Ultimate also offers DuoRail construction to maintain the shape and density of your youth sized mattress from side to side. The Delux's medical grade, soft stretch-knit mattress cover is compliant with all current safety standards. Its lightweight and pliable nature enables your child'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 vinyl, PVC, lead and phthalates free and is treated for antimicrobial protection. It cleans easily with a damp sponge and won't retain unpleasant odors or stains.