Update: This deal is over. Price has increased. Overstock marks down the Eco-friendly 3-inch Contoured Memory Foam Mattress Topper from $53.99 to $51.99 $54.99. Better yet, activate this link to bag free shipping with a new account, matching this with the lowest price we've seen to date. It is available in twin, twin xl, full, queen, king and California king. It is well reviewed, with 4.4 out of 5 stars from over 200 reviews. There's no sales tax (except UT).