Overstock.com offers the Bodipedic Essentials 3" Memory Foam Wave Mattress Topper
with free shipping
. That's at least $7 below the lowest total price we could find for such a mattress topper in any size elsewhere, although we saw it for $16 less last summer. This reversible mattress topper features a contoured side and a smooth side. It's available in sizes twin, full, queen, king, or California king.