Sears offers the Serta Springcreek II Super Pillowtop Queen Mattress
, model no. 364953-350, for $399.99. Coupon code "SEARS2013" cuts it to $394.99
. With $69.99
for shipping, that's $705 off list and the lowest total price we could find. This memory foam mattress features a continuous coil design and a layer of Serta Comfort XD foam.