ViscoSoft 4" Active Cooling Copper Memory Foam Topper (Queen) Review
#7 of 8 · Best for support + cooling✓ Product photos checked Sep 7, 2026Real retailer photo, cut out. Label unedited.
Consider it. A real comfort-layer upgrade that runs cooler than foam has any right to — not a dedicated cooling device. Four inches of CertiPUR-US copper-infused memory foam genuinely transforms a too-firm or tired mattress, with a wicking washable cover and straps that keep it put — and the copper infusion means it avoids classic memory-foam heat-trapping.
~$199
Why It Scores 7.7 — And The Label Line Behind Each Number
Cooling power & range
30% of scoreThe mildest cooling on our list, scored honestly: copper infusion conducts heat away from the body and out of the foam's cell structure, and the wicking cover breathes — so it defeats memory foam's heat-trap reputation rather than making the bed cold. A real improvement over standard foam; no match for conductive pads, PCM, or anything active.
- Cooling
- Copper infusion spreads/dissipates body heat; breathable moisture-wicking cover
Even & consistent cooling
20% of scoreWhat it does, it does steadily: there's no first-contact chill to fade and no PCM buffer to saturate, so the foam's moderate thermal behavior is the same at 3 a.m. as at lights-out, evenly across the surface. Consistency is easier when the effect is modest — the score reflects genuine steadiness at a low intensity.
Material & feel
20% of scoreThe reason to buy it: four inches of pressure-relieving memory foam is a transformative comfort layer for firm or tired mattresses, the CertiPUR-US certification covers the low-VOC/restricted-chemicals bar we set for foam, and the breathable cover removes and machine washes. Among the best sleep surfaces on our list — it just happens to cool least.
- Feel
- Deep contouring pressure relief; softens and changes the mattress feel substantially
Noise & livability
15% of scoreFull passive marks: silent, unpowered, zero maintenance beyond washing the cover, with anti-slip straps that actually hold the topper in place under a restless sleeper. The one practical note is bulk — 4 inches adds height (check sheet pocket depth) and the topper is heavy to move and can't be machine washed itself.
- Noise
- None — silent, unpowered
Value
15% of score~$199 is fair when you count both jobs: a quality 4-inch certified foam topper alone justifies most of the price, and the copper/wicking cooling rides along. Judged purely as a cooling purchase it would score far lower — the Elegear does more cooling for $70 — which is exactly why the badge says 'support + cooling.'
- Price
- ~$199 (Queen)
- More Specs
- Type
- Passive — copper-infused memory foam mattress topper
- Thickness
- 4 in — a genuine comfort/support layer, not a thin pad
- Material safety
- CertiPUR-US certified foam (low VOC; made without listed flame retardants, formaldehyde, phthalates)
- Cover
- Removable, machine-washable, with anti-slip straps to hold position
- Limit
- Cooler than standard memory foam — not cold; foam still runs warmer than thin conductive pads
Photos checked.This product has no Supplement Facts panel; the retailer's listing photos were reviewed Sep 7, 2026.
Marketing Claims Vs. Reality
'Active Cooling' copper-infused topper for cooler sleep.
The cooling mechanisms are real — copper raises the foam's thermal conductivity and the wicking cover breathes — but the branding overreaches: this is passive cooling, and the mildest on our list. 'Sleeps cooler than standard memory foam' is the accurate version; 'active cooling' in the engineering sense (water, air) it is not.
4-inch memory foam layer relieves pressure and improves comfort.
Four inches of conforming foam is a substantial, genuine comfort layer — the pressure-relief effect on firm or tired mattresses is the product's strongest and most reliable benefit, and the main thing buyers report satisfaction with. This is the job it does best.
CertiPUR-US certified foam.
The certification appears on the live listing. For polyurethane foam this is the meaningful materials-safety standard — low VOC emissions, made without the program's restricted flame retardants, heavy metals, formaldehyde, and phthalates — and it's the bar we require for foam products in body contact all night.
Anti-slip straps and washable cover keep it practical for nightly use.
The strap system genuinely holds the heavy topper in place — a real fix for the topper-migration problem — and the removable cover machine washes. The foam core itself is not washable, which is standard for the category.
What Our Test Actually Found
This is a comfort purchase with a cooling benefit — invert that and you'll be disappointed
The clearest way to set expectations: rank what this product does. First, it changes how your mattress feels — profoundly, via four inches of contouring foam that a too-firm or moderately worn bed badly needs. Second, it holds itself in place and keeps its cover clean — practical wins. Third, it runs cooler than the memory foam you may have sworn off. That third-place benefit is real but it is third: buyers who come for support and receive cooling as a bonus rate it highly; buyers who come for cooling alone discover that foam — even copper-infused — is still the warmest material class on our list. Our badge, scores, and rank all encode that ordering.
Copper infusion fixes memory foam's worst habit rather than adding a new superpower
Standard memory foam's dense, closed cell structure traps body heat, which is why 'memory foam sleeps hot' became conventional wisdom. Copper is among the most thermally conductive metals; infused into the foam matrix, it gives heat a path to spread laterally and dissipate instead of pooling under your torso. Add a breathable wicking cover and the classic heat-trap scenario largely disappears. What copper does NOT do is refrigerate: there's no set temperature, no cold-touch chill, no phase-change buffer. Think of it as removing a penalty, not granting a bonus — which for foam lovers who sleep warm is exactly the deal they wanted.
The CertiPUR-US certification is load-bearing for this pick
Our material-health rule weights skin-proximity products hard, and polyurethane foam is the category where certification matters most: uncertified imported foam can carry VOC loads and legacy flame-retardant chemistry you don't want inches from your face for eight hours. ViscoSoft's CertiPUR-US certification — verified on the live listing — covers low VOC emissions and manufacture without the program's restricted substances. Without it, a foam topper wouldn't make this list regardless of comfort. With it, plus a washable cover as the hygiene layer, the materials story is solid. Standard foam advice still applies: air it out for a day or two after unboxing.
Mind the practical bulk: height, weight, and what it can't fix
Three real-world notes before buying. Height: four inches added to your mattress can push total depth past standard fitted-sheet pockets — deep-pocket sheets may become mandatory. Weight and handling: this is a dense, heavy layer; rotating it is a two-person job and the foam core can't be washed, only the cover. Structure: a topper conforms to whatever is under it, so it rescues too-firm and smooths moderately-worn, but a hammocking, structurally failed mattress will hammock through four inches of foam — that's a mattress replacement, not a topper purchase. Within those bounds, it's the most transformative surface change on our list.
Full analysis: all pros & cons (8), buy if / skip if
- Doubles as a real comfort upgrade — 4 inches of pressure-relieving foam transforms firm or tired mattresses
- Copper infusion + wicking cover genuinely defeat memory foam's classic heat-trapping
- CertiPUR-US certified foam — the materials-safety bar that matters for nightly foam contact
- Removable machine-washable cover with anti-slip straps that actually hold position
- Silent, unpowered, zero maintenance beyond the wash cycle
- Mildest cooling on our list — cooler than standard foam, never cold; a very hot sleeper will out-pace it
- 4 inches of foam still sleeps warmer than a thin conductive pad, and changes your mattress feel substantially
- Adds height (deep-pocket sheets) and bulk; foam core can't be washed and heavy to handle
- Your mattress is too firm or moderately worn AND you sleep warm — this fixes both in one layer
- You're a side sleeper or have pressure points that want 4 inches of real contouring foam
- You were burned by a standard memory foam topper that trapped heat — copper infusion is the fix
- You want certified foam (CertiPUR-US) and a machine-washable cover for nightly use
- Your mattress is fine and heat is the whole problem — the Elegear (#6) or Slumber Cloud (#5) cools better for less
- You have real night sweats or a hot room — no foam product touches that; go active (#1-#4)
- You like your mattress's current feel — 4 inches of memory foam will change it substantially
Four inches of CertiPUR-US copper-infused memory foam genuinely transforms a too-firm or tired mattress, with a wicking washable cover and straps that keep it put — and the copper infusion means it avoids classic memory-foam heat-trapping. But its cooling is the mildest on our list: cooler-than-foam, not cold. Buy it when you want a better sleep surface AND less heat in one layer; if heat is your only problem, the Elegear pad (#6) cools harder for a third of the price and the active systems are in another class entirely.
The ViscoSoft Active Cooling topper is on our bed-cooling list for a buyer the other seven picks ignore: the person whose bed is both too warm and genuinely uncomfortable. Every other product here assumes your mattress is fine and heat is the problem. This one assumes the opposite — that you'd upgrade the sleep surface itself if you could, and you'd like it to run cooler while you're at it. Four inches of copper-infused memory foam is a serious comfort layer: it adds deep, pressure-relieving cushioning that can rescue a too-firm mattress or smooth a moderately tired one, held in place by an anti-slip strap system under a breathable, moisture-wicking, machine-washable cover. The foam is CertiPUR-US certified — the low-VOC, restricted-chemicals standard we require before recommending any polyurethane product for nightly skin proximity. The cooling claim needs the honest frame its 'Active Cooling' name doesn't quite give it: this is passive cooling, and the mildest on our list. Copper infusion spreads and dissipates heat so the foam avoids memory foam's notorious heat-trap effect, and the wicking cover helps at the surface — cooler than standard foam, genuinely; cold, no. That's why cooling power scores 6.0, the lowest of our eight, while material and feel scores 8.8, among the highest. Buy it when support is half the goal; buy elsewhere when heat is the whole goal. Here's the full breakdown.
Buy it when support is half the goal — as a pure cooler, it's outclassed by cheaper picks.
The ViscoSoft earns its place on a cooling list by serving the buyer the rest of the list can't: someone whose mattress needs help and who sleeps warm. As a comfort layer it's the most transformative product we ranked — four inches of certified, contouring, pressure-relieving foam with a washable cover and straps that keep it civilized — and the copper infusion means choosing foam no longer means choosing heat. That two-for-one is genuine value at ~$199, and for side sleepers on firm mattresses it may be the most life-improving purchase here. Judged purely on this list's headline criterion, though, it finishes where we ranked it: 6.0 cooling is the lowest of the eight, and 'cooler than standard memory foam' is a floor-raiser, not a cooling system. So the routing is simple. Uncomfortable AND warm: buy this. Comfortable but warm: the Elegear (#6) cools harder for $70, the Slumber Cloud (#5) buffers all night for $229. Genuinely hot or sweating through sheets: only the active systems (#1-#4) have the physics. Buy it for the right reason and it's excellent; buy it for the wrong one and you've bought a very good topper you didn't need.
If This Doesn’t Fit — Try These
06Elegear Arc-Chill Mattress Pad
The budget hero.
05Slumber Cloud Performance Pad
The best passive pick on the list, and the right answer for a large group of buyers: people who just run a little warm, value total silence, and don't want a machine beside the bed.
01Sleepme Dock Pro
On pure cooling performance, this is the one to beat.
Quick Answers
Does copper-infused memory foam actually sleep cooler?
Cooler than standard memory foam, yes — and that's the honest bar. Conventional memory foam is notorious for trapping body heat in its dense cell structure; copper infusion raises the foam's thermal conductivity so heat spreads and dissipates rather than pooling under you, and the topper's breathable, moisture-wicking cover helps at the surface. The result is a foam layer that avoids the 'sleeping in warm sand' effect rather than one that makes the bed cold. If your reference point is a chilled water pad or even a conductive Arc-Chill fabric, this is milder; if your reference point is the memory foam topper that cooked you last summer, it's a real upgrade.
Is the foam safe to sleep on? What about off-gassing?
The listing shows CertiPUR-US certification, which is the meaningful standard for polyurethane foam: it verifies low VOC emissions and that the foam is made without the flame-retardant chemicals, heavy metals, formaldehyde, and phthalates on the program's restricted list. That's the certification we require before recommending any foam product for nightly body contact. Practical note that applies to all compressed-shipped foam: unbox it in a ventilated room and give it a day or two to expand and air out — the faint new-foam smell dissipates. The removable cover machine washes; the foam itself does not.
Will 4 inches of foam change how my mattress feels?
Substantially — that's its main job. Four inches is a genuine comfort layer, not a topper in name only: it adds deep pressure-relieving cushioning that can rescue a too-firm mattress, smooth out a moderately worn one, and noticeably change the feel of the bed (softer, more contouring, slightly less bouncy). Side sleepers and anyone with hip or shoulder pressure points tend to benefit most. Two cautions: it adds height (check your fitted-sheet pocket depth), and it can't fix a truly sagging, structurally failed mattress — foam conforms to what's under it.
Should I buy this or a dedicated cooling pad?
Ask which problem is bigger. If your mattress is uncomfortable AND you run warm, this topper is the only pick on our list that addresses both in one layer, and that combination is exactly why it's here. If your mattress is fine and heat is the whole problem, skip it: the Elegear Arc-Chill pad (#6) delivers a stronger cooling sensation for a third of the price, the Slumber Cloud (#5) buffers all night, and real night sweats belong with an active system (#1-#4). Four inches of foam — even copper-infused — still sleeps warmer than a thin conductive pad, because foam is foam.
Sources & Further Reading
2 peer-reviewed sources, each linked to PubMed
- [1] Herberger 2024 PMID 38409133 — Enhanced conductive body heat loss during sleep increases slow-wave sleep and calms the heart. Three-center study (n=72): enhancing conductive body-heat loss during sleep increased slow-wave sleep and lowered heart rate — the principle behind preferring heat-dissipating sleep surfaces (like copper-conductive foam) over heat-trapping ones.
- [2] Raymann 2008 PMID 18192289 — Skin deep: enhanced sleep depth by cutaneous temperature manipulation. Skin-temperature manipulation within the comfort range deepened sleep and reduced wakefulness — evidence that avoiding surface heat build-up (memory foam's classic failure) is worth engineering against.
Affiliate disclosure: every Amazon link uses our Associates tag (superachieverclub-20). We earn a small commission at no cost to you; it funds independent reviews. We never accept payment to change a ranking.