Sleep Studio 3-Inch ViscO2 Active Green Tea Memory Foam/Latex Contoured Mattress Topper, Queen Breathable 3-inch ViscO2 Active memory foam/latex hybrid topper for queen mattress; natural green tea additive for pleasing aroma Combines 3-pound density, open-cell memory foam and supportive latex for maximum sleeping comfort; with plant-based ingredients 3-zone ventilation for greater air flow and cooler sleep temperatures; pressure point relief with 1-sided contour surface design Made in the USA, topper measures 78 inches long by 58 inches wide by 3 inches high; limited manufacturer warranty