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A four-inch memory foam mattress topper from Serta, built as a rectangular pad with a pillow-top style surface. The thickness is the main selling point: it adds a deep layer of soft foam over a firm or aging mattress, more cushioning than the two- and three-inch toppers most rivals sell. It suits sleepers who want a plusher, pressure-relieving surface without replacing the mattress, though hot sleepers should note that thick memory foam tends to trap heat.
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Lowest price we've seen: $199.98 on Nov 13 at Sam's Club. Tracked across 1 store since Nov 13.
This is a 4 inch pillow-top memory foam mattress topper from Serta. It is rectangular and comes as a single piece.
