The Serta Comfort Zone Memory Foam Mattress Topper is quite thin at only 1.5 inches, but if you only need to makes the slightest change to your current bed, then it should be perfect for that.

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What to shop in the Serta ... Sleeper mattresses offer pressure relief, balanced sleep temperature support through intuitive cooling, and a supportive coil and combined memory foam design.

There are a lot of mattress companies out there, some new, some old, but none are more prevalent than Serta. Say what you will about the brand, but it knows how to make a damn good mattress.