Serta Comfort Zone 10.5-Inch Memory Foam Mattress Topper, Twin. Sleep like you?ve never slept before on this mattress topper from Serta. As part of the Serta family of comfort solutions, this Comfort Zone memory foam topper can improve any night?s rest on top of virtually any mattress. This unique mattress pad is split up into zones that target different parts of your body in specific ways to conform ideally to your curves and joints. Combined with a breathable design in the foam to keep you cool, this memory foam topper will help you drift off into dreams and stay there all night long. Comfort is a trademark of Leggett Platt, Inc. 100% Memory Foam Breathable memory foam designed to maintain temperature regulation while you sleep Zoned comfort that targets the individual contours of the body for enhanced pressure relief Gel infusion technology provides added support to any sleep surface Extends the life of your mattress Made in the USA