This cooling mattress topper is always sold out — but it's back and up to $169 off for the Black Friday sales

It's a great feeling when a bestseller on your wish list is finally back in stock — and in time for the Black Friday sales no less. Right now, you can save up to $169.96 on the Active Cooling Mattress Topper at ViscoSoft, taking a queen size down to $239.99 (was $399.95).

The Active Cooling Mattress Topper is a great way to boost the support of your sleep set-up if you're not in the market for a new mattress. It earned a place in this year's best mattress toppers guide thanks to its impressive cooling properties and firm support — probably why it's constantly sold out.

But it's returned in time for the Black Friday mattress sales, and we expect it to fly off the shelves again. Our advice? Buy now, as it's likely to stay at 25% off throughout November (we've never seen a bigger discount from ViscoSoft) and we expect it sell out soon.

ViscoSoft Active Cooling Copper Topper: twin XL was $299.95 now $189.99 at ViscoSoft
The ViscoSoft Active Cooling Copper Topper is one of the rare memory foam mattress toppers that can make soft mattresses firmer, making it one of the best memory foam mattresses toppers for adding support to your bed. Testers for the ViscoSoft Active Cooling Mattress Topper review praised how great its phase-changing yarns' temperature regulation was at keeping them cool, and the firm feel is strongly recommended for back sleeping (but the reviewers did say they felt comfy while side and stomach sleeping). Its 4"-tall design, complete with anchor straps and cooling cover, is constructed of copper-infused memory foam (the copper is added for its antimicrobial and heat-wicking properties), making it a cheaper alternative to the best cooling mattresses (but don't expect the same ultra-advanced, specialist cooling tech).
With the 25% discount, a queen is $239.99 (down from $399.95), and that includes a 90-day sleep trial, free delivery, and a 5-year warranty.

<p><strong>Our review: <a href="https://www.tomsguide.com/reviews/viscosoft-active-cooling-mattress-topper-review"><strong>★★★★<br /><strong>User score: <a href="https://click.linksynergy.com/deeplink?id=kXQk6%2AivFEQ&mid=44608&u1=tomsguide-gb-1007109752094234445&murl=https%3A%2F%2Fviscosoft.com%2Fproducts%2Fselect-active-cooling-copper-topper" target="_blank"><strong>★★★★½<strong> (190+ reviews)

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Why should you buy the Active Cooling Copper Mattress Topper ahead of Black Friday?

If you're not in the market for one of this year's best mattresses, a topper might be enough to transform the comfort of your bed.

Most memory foam mattress toppers are designed to soften hard mattresses, but the ViscoSoft Active Cooling Mattress Topper is different in that our testers found it actually added firm support to their beds.

That's why we recommend this to back sleepers especially (although stomach sleepers, along with side sleepers who appreciate a firm bed, should enjoy it, too) and anyone who wants to add a hygienic and cooling surface to their mattress.

A twin is unfortunately unavailable, but a twin XL (the standard dorm bed size ) is, so the hygiene-boosting Active Cooling Copper Topper is one of the best mattress toppers for college dorms.

All the above means the Active Cooling Copper Topper is definitely worth buying, but why should you buy right now instead of closer to Black Friday?

Well, two reasons: Firstly, there's no point hanging around for Black Friday as we've never seen a discount bigger than the current 25% discount, and secondly, we also don't expect many sizes to be around by Black Friday.

Up until now, most sizes were sold out. Our advice? Don't wait around for a better discount (that will likely never arrive), otherwise your size will disappear as suddenly as it had reappeared.