Lucid 4" Gel Memory Foam Mattress Topper, Twin XL

4 inches of thick, plush gel memory foam add a comfort layer to an existing mattress Infused with gel material that captures and distributes heat for a cooler memory foam experience Ventilated design improves airflow and breathability Memory foam distributes weight evenly and conforms to curves to alleviate pressure points Twin X-Large Size measures 37.5 inches by 79 inches and comes with a 3 year Warranty