Green Tea Queen Memory Foam Mattress: Infused with green tea extract, the top layer of this queen mattress absorbs sweat and neutralizes odors, promoting a stress-free sleep environment, topped by an OEXO-TEX certified, breathable knit cover. Cooling Graphite Sleep Technology: The middle layer is made of egg crate graphite foam, a breathable, fire-retardant material that efficiently draws heat away from your body. Body-Hugging Memory Foam: The base layer, middle layer, and top layer of our queen size mattresses are all made of CertiPUR-US certified, premium memory foam that conforms to the shape of your body, alleviating pressure points and providing personalized support. Bed In A Box, Queen Size: Available in 8”, 10”, or 12”, this queen bed mattress ships vacuum packed. Unroll the mattress on your bed frame and walk or jump on it to aid decompression. Full decompression may take 24-72 hours. Rest Easy With Nestl: 10-year limited warranty. Queen size mattress max weight: 500 lbs.