Designed with advanced health, safety, and comfort standards, every Starlight Sparkle mattress is manufactured with welded seams, premium medical quality, water, stain and odor-resistant deluxe knit fabric, and a woven fire barrier with no spray-on FR chemicals. The Sparkle is a 6" deep, two-stage sleep system offering an extra firm layer of foam infused with plant oils on the infant side and a pressure redistributing visco foam on toddler side. The Sparkle takes protecting baby one step further with an engineered BreatheWell Core specially to circulate air throughout the mattress. Finally, the Sparkle is available with our hallmark woven ribbon denoting its quality and origin as a Moonlight Slumber Specialty Crib Mattress.Shipping available only in continental United States. Care instructions. This crib mattress is designed to be cleaned with a damp sponge and warm water. Use a mild liquid soap if necessary. Do not use any harsh cleaners, antibacterial or diaper wipes, as these contain additives that may eventually break down the surface of your mattress.