The Green Tea Aspire Memory Foam Mattress, developed with the skill and expertise we've gained through decades of crafting unbelievably comfy mattress foam. Infused with refreshing, premium green tea in every layer, this American beauty features layers of memory foam, Zinus Comfort Foam®, and Zinus Base Foam™. The Aspire Mattress is assembled in the USA with highest quality CertiPUR-US certified foams and backed by a 10-year worry-free warranty, so you can rest with total peace of mind.