Disclosure: This site receives a payment from 1800 Mattress, US Mattress, or Sears, Macy’s, or Sam’s Club when you purchase a product using any links to those companies in this article. (Update 4/3/2016: The Vantage lineup has also been discontinued, and Serta has named their newest iSeries lineup the “Appaluse II.” It is NOT the same mattress […]