I looked for toppers made with a wide variety of materials — including memory-foam, latex foam, down, and fiberfill — that can change the feel of your mattress in a variety of ways.

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Superior Sleeping Experience - The BedsPick memory foam mattress topper will transform your mattress from ordinary to extraordinary. The topper add a layer of memory foam or another type of foam ...

I took note of features that promote airflow, like perforations in a topper’s foam or mesh panels in its cover. I generally sought out latex foam over memory foam as it typically stays cooler.