Mattress Toppers by Mellow. Details:Best Price Mattress' New 5-Zone Lavender Bed Topper is a 3 Inch CertiPUR-US certified, premium memory foam mattress topper for maximum comfort and better sleep. Product features a 5 Body Zone with different point of contact to better prevents tossing and turning. Its breathable memory foam layer is also infused lavender for calming and relaxing scent.