This deal has ended.
Through 11/25, Overstock has a 14" Kingsize Memory Foam Mattress Topper for $581.99, an additional $118 discount just for BradsDeals. The memory foam is a gel-like substance that adjusts to the warmth and shape of your body, making your bed more comfortable. 40 Overstock users rate this 4.8 out of 5, with 98% saying they would recommend it to a friend. Shipping is free through 11/28 and there is no sales tax (except UT, IN).