LUCID 2 Inch Ventilated Memory Foam Mattress Topper - 3 Year Warranty - Olympic Queen 2" premium memory foam mattress topper, 3-year warranty Ventilated to increase air flow for a soothing sleeping temperature Lucid memory foam formula offers superior comfort and pressure relief Open cell technology prevents lasting body impressions 1" shorter on all sides to ensure your sheets still fit over your original mattress and the topper