Overstock.com offers the Bodipedic 3" Memory Foam Mattress Topper with Fitted Skirt for $119.99 plus $2.95 for shipping. That's the lowest total price we could find for this hypoallergenic mattress topper, although it was $3 less in April (since expired). It comes with a removable, washable cover and is available in five sizes from twin to California king.