2" 5lb (Sensus Visco Elastic) Memory Foam Mattress Pad Topper Overlay - Cal King size The Sensus Topper is our top-of-the-line luxury mattress pad. Two inches of five pound Sensus memory foam will give you the feeling you are floating in bliss. Our Sensus foam mattress pad is softer than the 5-pound Tempur-Pedic topper Order with or without the Quilted 100% Cotton Cover. All Sensus Mattress Pads come with a 10-year warranty.