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The Serta Comfort Boost is a 2-inch memory foam mattress topper infused with green tea. It is meant to soften a too-firm mattress and add a light layer of pressure relief without changing the feel of the bed much. At 2 inches it is thinner than the 3- and 4-inch toppers it competes with, so it adds cushioning rather than a deep sink-in feel. Owners are split: some like the softer surface, while many complain it sleeps warm, compresses quickly and runs small against the mattress.
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Lowest price we've seen: $100.79 on Nov 12 at Kohl's. Tracked across 1 store since Nov 12.
Ratings are middling at 3.1 out of 5. Owners who like it call it a cheap way to soften a hard bed; many others say it flattened within weeks, slept hot and arrived smaller than the mattress.
This Serta Comfort Boost mattress topper is made of 2-inch memory foam with green tea. It comes in King size and measures 74 inches by 78 inches.
