A little disappointed by this product. Title says Serta Rejuvenator 4-inch Memory Foam Mattress Topper. It is misleading. Only two of the 4 inches is actual memory foam, glued to 2 inches of standard foam. Given the price, I guess I should have expected as much. The topper does not cover the entire mattress either. It is still quite commfortable which is why I would recommend it to others who are looking for an affordable memory foam option.