Save up to $172 on these 5 top-rated mattress toppers in the Amazon Prime Day sales

The Molecule CopperWELL Topper and the Tempur-Adapt + Cooling Topper. On the Tempur-Adapt topper, a woman sleeps on her side. In the bottom left foreground, there is a Prime Day badge. — (Image credit: Future)

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I've only been impressed with a handful of mattress deals this Prime Day, but Amazon's biggest sale is making up for it with great discounts on sleep accessories — that includes mattress toppers. The Tempur-Pedic Tempur-Adapt + Cooling Mattress Topper, now $319 (was $429) in a queen at Amazon, is one of the best bedding deals I've seen this Prime Day.

After rigorous testing, we named the Tempur-Adapt + Cooling Mattress Topper this year's best mattress topper. It both softens and cools hard beds, helping tackle two common sleep saboteurs. But it's not the only cooling model discounted this Prime Day... especially as many sleep brands are running their own rival (sometimes even better) sales.

The CopperWELL Mattress Topper, now $200 (was $249) at Molecule, is our top pick for hot sleepers and a prime (no pun intended) example of a great Amazon Prime Day sleep deal found outside of Amazon. These are all the best mattress topper discounts in this year's Amazon October Prime Day sales.

The original Tempur-Adapt Mattress Topper delivered amazing pressure relief for side sleepers, but it could sleep hot. Enter the Tempur-Adapt + Cooling model, an upgrade that still has that side-sleeper comfort but fixes the heat retention with a specialist cooling cover. At Amazon, a queen size is down to $319 from $429. And you get some good benefits shopping from Amazon, like a 90-day return window (buying from the Tempur-Pedic sales means the topper is non-returnable).

Our Tempur-Pedic Tempur-Adapt + Cooling Topper review: ★★★★½
User score: ★★★★½ (12,400+ reviews)

Thanks to a cooling copper infusion and airflow-boosting structure, the CopperWELL Mattress Topper excels at temperature regulation and is out top choice for hot sleepers who want to add some cooling tech to their bed. One of the top deals I found outside of Amazon (it's very rarely on sale), it's now 20% off at Molecule. This takes a queen to $200 (was $249), plus it comes with a 5-year warranty and 30-night returns.

Our Molecule CopperWELL mattress topper review: ★★★★½
User score: ★★★★ (20+ reviews)

One of the rare mattress toppers to add firmer support rather than cushioning, the Active Cooling Copper Topper is ideal for back sleepers and hot sleepers alike. Its copper-infused ThermalAdapt foam and ventilated airflow channels prevent overheating, while the firm foams deliver good lumbar support. Right now, a queen is $254.99 (was $399.95) at ViscoSoft, and buying from the brand guarantees you a five-year warranty plus a 90-night sleep trial.

Our Viscosoft Active Cooling Mattress Topper review: ★★★★
User score: ★★★★½ (200+ reviews)

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Frances Daniels is a PPA-accredited journalist and Sleep Staff Writer at Tom's Guide with an MA in Magazine Journalism from Cardiff University. Her role includes covering mattress and sleep news and writing sleep product reviews and buyer's guides, including our Best Hybrid Mattress 2025 guide. She is interested in the relationship between sleep and health, interviewing an array of experts to create in-depth articles about topics such as nutrition, sleep disorders, sleep hygiene, and mattress care. She is also our specialist on mattress toppers — producing bed topper reviews and taking care of our Best Mattress Toppers 2025 guide — and leads content relating to fiberglass-free beds for a non-toxic sleep. Outside of Tom's Guide, she has written for Ideal Home and Marie Claire.