ViscoSoft
ViscoSoft Active Cooling Topper
PCM-infused gel memory foam with quilted cooling cover
Material
Gel-Infused Memory Foam with PCM
Thickness
3 inches
Firmness
Medium Soft (4.5/10)
Warranty
5 years
Free shipping
ViscoSoft Active Cooling Topper Overview
The ViscoSoft Active Cooling Topper pairs a phase-change cover with gel memory foam for a genuinely cool first 20–40 minutes at the surface. It is the best value in the cooling topper category.
Our Hands-On Experience
The phase-change cover is the reason to buy this one. PCM fabric absorbs heat until it saturates, which in our testing meant a genuinely cool first 20 to 40 minutes at the surface — the window that matters most for people who struggle to fall asleep when they are hot.
Underneath, the gel-infused memory foam is standard-issue medium-soft. It contours pleasantly and is generously sized, but it does not have the density or the rebound of TEMPUR or latex, and heavier sleepers will compress through it.
At $129 it is the price-to-performance pick of the cooling category. Treat it as a two-to-four-year purchase rather than a decade-long one, and wash the removable cover on cold to keep the PCM finish intact.
Our Ratings
Our Review
ViscoSoft's Active Cooling Topper combines gel-infused memory foam with a phase-change material (PCM) quilted cover for dual cooling action. At under $130 for a Queen, it's one of the best-selling cooling toppers on Amazon. The quilted cover is removable and machine washable.
What We Love
- Dual cooling — gel foam + PCM cover
- Affordable entry-level cooling topper
- Removable, machine-washable cover
- Elastic straps keep it secured
- Good pressure relief at this price
Room for Improvement
- Durability is average — may need replacing in 3 years
- PCM cooling effect diminishes over time
- Softer feel may not suit everyone
- Memory foam base still retains some heat
Best For
Common Themes in Owner Reviews
Common themes in owner reviews of the ViscoSoft Active Cooling Topper line up with the points below. We summarise recurring praise and complaints rather than republishing individual reviews, reviewer names, dates or helpful-vote counts, because those belong to the retailer and we cannot verify them here.
Praised most often
- Dual cooling — gel foam + PCM cover
- Affordable entry-level cooling topper
- Removable, machine-washable cover
- Elastic straps keep it secured
- Good pressure relief at this price
Most common complaints
- Durability is average — may need replacing in 3 years
- PCM cooling effect diminishes over time
- Softer feel may not suit everyone
- Memory foam base still retains some heat
Verified owner reviews written by Sleep Sage readers appear separately and are attributed to real accounts.
ViscoSoft Active Cooling Topper: Materials, Care & Durability
Research evaluation based on published specifications, materials analysis and verified owner feedback. Verified on viscosoft.com on September 3, 2026.
Care, washing & durability
The cover is machine washable and that is the maintenance schedule — wash cold, tumble low, never hot. Heat kills the phase-change finish.
Three-year warranty.
The bottom line
The best cooling-per-dollar memory foam topper in this round, and the washable phase-change cover is the reason. Less durable than latex, much cheaper than the TEMPUR.
How We Researched the ViscoSoft Active Cooling Topper
This is a research evaluation. We have not put the ViscoSoft Active Cooling Topper through our physical lab protocol, so this page describes verified construction, manufacturer specifications, policies, comparative analysis and published owner feedback.
Research Evaluation: This mattress has not completed our physical lab testing protocol, and we publish no Sleep Sage lab measurements for it. Our evaluation is based on verified construction, manufacturer specifications, policies, comparative analysis and available owner feedback.
Construction & Materials Review
We document the mattress's published layer construction, materials, densities and cover fabrics from manufacturer specifications and supporting documentation.
Specification & Certification Verification
We check published specifications, certifications and material claims against the manufacturer's own documentation, and flag anything we cannot confirm.
Policy & Price Verification
Trial length, return terms, warranty coverage, shipping and current pricing are recorded from the retailer and re-checked when we update the review.
Owner Feedback Synthesis
We summarise recurring themes in published owner feedback rather than republishing individual reviews, names or vote counts.
Comparative Analysis
We position the mattress against comparable models we have measured, using construction similarities — never by assigning it measurements it does not have.
What We Have Not Done
No documented pressure mapping, thermal logging, motion-transfer, edge-deflection or durability measurements are available for this unit. We publish no lab scores until they are.
Editorial transparency: Ben Trapskin owns Yawnder, a mattress retailer, and Sleep Sage may earn commissions from qualifying purchases. Retail and affiliate relationships do not substitute for independent measurement evidence. We identify which observations are firsthand and which claims come from manufacturer sources. Read our full editorial policy and detailed testing methodology.
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