Sears offers the Serta Nolan II Pillowtop Queen Mattress, model no. 703263-350, for $249.99 with $69.99 for shipping. That's $375 off list and the lowest total price we could find, although we saw it for $4 less last week. Deal ends December 15.
Of note, Shop Your Way Rewards members will earn a Sears credit with this purchase and may be eligible for additional credits and discounts.