Refreshing comfort and joint support come together in the Green Tea TorsoTec® 4" Mattress Topper. Zinus Base Foam™ delivers even head-to-toe support and long-term dependability. A 4-inch design with a TorsoTec® support system gives targeted relief to the hips and shoulders to relieve aches and pains, and green tea memory foam ensures a cool and refreshing night of sleep.