This Serta Coralee Queen Mattress Set drops from $749.99 to $296 to $291 when you use code SEARS5OFF50 at Sears.com. Shipping adds a $69.99, bringing the total to $360.99. The set includes a Serta Coralee firm mattress and Sertapedic queen box spring in either a standard or low profile size. Sales tax is charged in most states.