Get this Slumber Solutions Highloft Supreme 3-inch Memory Foam Mattress Topper for $58.99 at Overstock.com. Even with $2.95 shipping, this is the best deal we could find on this topper. Plus, new customers receive an extra 5% off, which drops it down to $56.05. This mattress topper is well reviewed and is hypoallergenic, resistant to dust mites and is naturally antimicrobial. Sales tax is charged in most states.