

Serta Cooling Waterproof Power Chill Mattress Protector
SAVE $19
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What this Amazon deal is worth
Serta Cooling Waterproof Power Chill Mattress Protector is $28 at Amazon, down from the $47 Amazon had on the listing when our tracker picked it up — a 40% cut that keeps $19 in your pocket.
The average discount across the 1050 deals carrying a percentage on Ring In The Deals right now is 48%, so at 40% off this one is shallower than the typical drop in the feed — it beats 32% of everything else live today.
There are 188 Home deals live at the moment, and measured in dollars saved this is the 132nd biggest of them.
We posted it 1 hr ago, and it comes off the site on November 8, 2026, 30 days after posting. Retailers change prices and stock without warning, so Amazon's own page is the final word — confirm the figure at checkout before you buy.
- Deal price
- $28
- Original price at Amazon
- $47
- You save
- $19
- Discount
- 40% off
- Retailer
- Amazon
- Category
- Home
- Posted
- October 9, 2026
- Listed until
- November 8, 2026
How we check: our tracker reads the retailer's own listing, records the price and the original price exactly as Amazon published them, and posts the deal without anyone retyping a figure. No discount percentage is shown unless both numbers came off that listing. More on how a deal gets on this page.
What we make of it
This mattress protector is designed to keep your bed cool and dry by utilizing a waterproof layer alongside its cooling technology, making it a solid choice for hot sleepers or those prone to spills. However, some users have reported that it can make a slight crinkling noise, which may disrupt light sleepers. It's important to confirm compatibility with your mattress size and ensure it fits snugly, as some may find it slips off easily.
Why this is a good deal
It is shallower than the typical Home discount
The median discount across the 188 Home deals we have live is 47%. This one is 40%.
What you actually keep
$19. A percentage is a ratio and a saving is money — on a cheap item a huge percentage can be worth less than a modest cut on something expensive, so this is the number we would judge it on.
Reasons to think twice
we have only seen this product once, so we cannot tell you whether the original price is a genuine going rate or a list price that nobody pays; the discount is only a saving if you were going to buy the thing anyway.
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