Enjoy supportive comfort when resting on three inches of responsive memory foam found in the AdaptiFoam Memory Foam Mattress Topper. Our open-cell AdaptiFoam memory foam is breathable, responsive, allergy free, and contains the rebound and firm support of latex to offer supportive spinal alignment for comfortable sleep throughout the night. Built-in AdaptiFoam Ventilation Technology provides maximum air flow and temperature regulation. The odor free memory foam meets CertiPUR-US standards for content, emissions, and durability for long lasting comfort. Each mattress topper is backed by a 5-year limited warranty.