Cloud9 Gel Cal-King 4 Inch 100% Gel Infused Visco Elastic Memory Foam Mattress Topper Cloud9 Gel Memory Foam Toppers are made to ensure a restful sleep experience with cooling comfort technology Cloud9 Gel Visco Elastic Memory Foam out performs and relieves painful pressure points better than the leading competitor with innovative cool gel visco elastic memory foam technology and better formulation to help you sleep cooler through the night without tossing and turning 20 Year Limited Warranty Direct From Cloud9 Bedding Visco Elastic Memory Bed Company Exclusive formula makes you feel like you are floating on CLOUD9, sailing forth into a sea of dreams Made in the USA, does not contain any toxic ingredients, new foam odors will disipate if aired out.