This Serta Coralee Queen Mattress Set drops from $749.99 to $279 to $274 when you use code SEARS5OFF50 at Sears.com. Shipping adds a $69.99 but even with that this matches the lowest price we've ever seen for this set. 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.