LUCID 2 Inch Ventilated Memory Foam Mattress Topper - 3 Year Warranty - Full 2-inch premium memory foam mattress topper backed by a 3-year U.S. warranty Ventilated to increase air flow for a soothing sleep temperature LUCID memory foam formula offers superior comfort and pressure relief Open cell technology prevents lasting body impressions; CertiPUR-US certified Full mattress topper measures 53" x 75"