After comparing specs and certifications, the Tempur-Pedic TEMPUR-Topper Supreme is our overall winner for its pressure relief and CertiPUR-US foam. If you want stronger cooling at a friendlier outlay, the ViscoSoft Select High Density gel topper is the alternative most owners point to.
Memory foam contours to your body and eases pressure points, but classic foam is known to trap heat, which is why cooling toppers add gel infusions, open-cell structures, or copper and graphite to pull warmth away. We compared the leading memory foam cool toppers on density, certifications, thickness, and trial terms, and we read through what owners report after months of nightly use.
We do not physically test these toppers ourselves. Instead, our rankings are based on published specifications, third-party foam certifications such as CertiPUR-US, and recurring themes in verified owner reviews. The picks below cover side sleepers, hot sleepers, firmer support seekers, and tight budgets so you can match a topper to how you actually sleep.
Tempur-Pedic TEMPUR-Topper Supreme
This topper uses Tempur-Pedic's signature high-density foam, which is engineered to adapt slowly to body weight and temperature for deep contouring. At roughly three inches it adds noticeable cushioning without overwhelming the mattress beneath it. The proprietary foam is designed to limit heat buildup compared to standard memory foam, though it leans more toward conforming comfort than aggressive cooling.
Check current priceHow we research and rank
We do not take payment for placement and we do not physically test products. Rankings come from manufacturer specifications, material certifications (CertiPUR-US foam, OEKO-TEX textiles), and the weight of aggregated verified owner reviews, analyzed for durability, heat retention and sagging. The scores in this guide are MattressVetted editorial research ratings — our assessment of the available evidence, not customer star averages. See how we rate.
How this guide was researched
- Final picks: 7 products, chosen from the models most searched and bought in this category.
- Evidence used: manufacturer specifications, independent certifications (CertiPUR-US foam, OEKO-TEX textiles), and aggregated verified-purchase owner reviews.
- Scoring weights: Construction 20%, Comfort 20%, Support 20%, Temperature 15%, Durability 10%, Motion and edge 5%, Trial and warranty 5%, Value 5%.
- Testing: we do not physically test products. Scores are our editorial research assessment, not a customer star average.
- Research reflects: July 2026.
Full method on our how we rate page.
The picks, compared
Tempur-Pedic TEMPUR-Topper Supreme
Sleepers who want premium pressure relief with a moderate cooling boost · Type: TEMPUR memory foam | Firmness: Medium-soft | Trial: 90-night
This topper uses Tempur-Pedic's signature high-density foam, which is engineered to adapt slowly to body weight and temperature for deep contouring. At roughly three inches it adds noticeable cushioning without overwhelming the mattress beneath it. The proprietary foam is designed to limit heat buildup compared to standard memory foam, though it leans more toward conforming comfort than aggressive cooling.
What owners report: Owners consistently describe a significant reduction in shoulder and hip pressure within the first week. Some note the topper sleeps warmer than dedicated gel options, so committed hot sleepers may prefer a cooler-focused pick.
- Deep, body-adapting pressure relief
- Durable high-density foam built to last
- Removable, washable cover
- Runs warmer than gel-infused rivals
- Premium positioning means a higher outlay
ViscoSoft Select High Density 3 Inch Gel Memory Foam Topper
Shoppers who want gel cooling and a bamboo cover without overspending · Type: Gel-infused memory foam | Firmness: Medium | Trial: 60-night
ViscoSoft pairs three inches of CertiPUR-US certified gel-infused memory foam with a removable bamboo-blend cover that adds breathability. The gel beads are designed to draw heat away from the body for a more neutral surface temperature. An included strap system helps keep the topper anchored to the mattress through the night.
What owners report: Owners frequently call out the strong cooling-to-cost ratio and the soft, breathable cover. A few mention an initial off-gassing smell that fades within a day or two of airing out.
- Gel infusion for a cooler sleep surface
- Washable bamboo-blend cover included
- Anchor straps reduce shifting
- Some report mild initial off-gassing odor
- Edge support is limited
GhostBed Memory Foam Mattress Topper
Hot sleepers who prioritize temperature regulation above all · Type: Cooling gel memory foam | Firmness: Medium | Trial: 101-night
GhostBed builds this topper with cooling gel memory foam and a Ghost Ice cover that uses a phase-change cover material to feel cool to the touch. The combination targets surface heat from two directions, the cover and the foam. It still contours to relieve pressure while keeping the sleep surface noticeably more neutral than plain foam.
What owners report: Owners report the cover genuinely feels cool when they first lie down and that the topper holds temperature better than older foam toppers they replaced. Some say the cooling sensation moderates over a full night rather than lasting until morning.
- Phase-change cover feels cool on contact
- Gel foam adds a second cooling layer
- Solid contouring for the price
- Cool-to-touch feel softens through the night
- Thinner profile than some rivals
Nectar Memory Foam Mattress Topper
Side sleepers needing extra cushioning at the shoulders and hips · Type: Memory foam | Firmness: Soft | Trial: 30-night home trial
Nectar's topper offers plush memory foam that cradles the heavier contact points side sleepers load most, the shoulders and hips. The foam is CertiPUR-US certified and tuned more for softness than firmness, which suits sleepers chasing a pillowy feel. A cooling cover helps offset some of the warmth that plush foam can otherwise hold.
What owners report: Owners who sleep on their side report meaningful relief from shoulder and hip soreness after switching. Stomach sleepers and those wanting firmer support sometimes find it too soft for their preference.
- Plush cradling ideal for side sleepers
- CertiPUR-US certified foam
- Cooling cover tempers heat
- Too soft for stomach sleepers
- Less cooling than dedicated gel toppers
Linenspa 2 Inch Gel Infused Memory Foam Topper
Budget shoppers and guest rooms wanting a simple cooling upgrade · Type: Gel-infused memory foam | Firmness: Medium-firm | Trial: Varies by retailer
Linenspa keeps things affordable with two inches of gel-infused memory foam that adds a layer of contouring and a touch of cooling. It is CertiPUR-US certified and ships compressed for easy setup. While the thinner profile means less dramatic pressure relief, it is a low-commitment way to soften a firm mattress.
What owners report: Owners describe it as a dependable, no-frills upgrade that takes a day to fully expand. Some note that the two-inch thickness offers modest support rather than the deep sink of thicker toppers.
- Very accessible price point
- Gel infusion for light cooling
- CertiPUR-US certified foam
- Thin profile limits pressure relief
- Needs time to fully expand
Sleep Innovations 4 Inch Dual Layer Memory Foam Topper
Sleepers who want substantial support and a firmer feel · Type: Dual-layer gel memory foam | Firmness: Firm | Trial: Varies by retailer
This four-inch dual-layer topper stacks a supportive base foam under a softer comfort layer, which delivers a firmer overall feel than single-layer options. The thickness makes it a strong choice for reviving a sagging mattress. Gel-infused foam and a quilted cover work together to keep the surface from sleeping overly hot.
What owners report: Owners say the dual-layer build adds real support and rescues older, softening mattresses. A few mention the substantial thickness can complicate fitting standard fitted sheets.
- Thick dual-layer build adds firm support
- Revives sagging mattresses
- Gel foam moderates heat
- Thickness can challenge standard sheets
- Heavier and harder to reposition
Lucid 3 Inch Bamboo Charcoal Memory Foam Topper
Sleepers wanting odor control plus cooling in one topper · Type: Charcoal-infused memory foam | Firmness: Medium | Trial: Varies by retailer
Lucid infuses this three-inch topper with bamboo charcoal, which is intended to absorb moisture and help control odor while ventilated foam aids airflow. The result blends contouring memory foam with breathability for a more balanced feel. It is CertiPUR-US certified and ships compressed in a box for straightforward setup.
What owners report: Owners appreciate the freshness the charcoal infusion adds along with comfortable contouring. Some report the cooling is moderate rather than dramatic, so very hot sleepers may want a gel or phase-change option instead.
- Bamboo charcoal helps control odor
- Ventilated foam improves airflow
- CertiPUR-US certified
- Cooling is moderate, not aggressive
- No cover included
Frequently asked questions
Do memory foam toppers actually sleep cooler?
Plain memory foam tends to trap heat, but cooling versions add gel, copper, graphite, or open-cell structures to move warmth away. Owners report these cool toppers feel more neutral than standard foam, though a phase-change cover usually delivers the most noticeable cool-to-touch sensation.
How thick should a cooling memory foam topper be?
Two inches adds light cushioning and works for guest beds or minor comfort tweaks. Three to four inches gives deeper pressure relief and is better for side sleepers or reviving a sagging mattress, though thicker toppers can make standard fitted sheets harder to fit.
What does CertiPUR-US certification mean?
CertiPUR-US is a third-party certification confirming the foam is made without certain harmful chemicals and meets standards for low emissions. We treat it as a baseline trust signal, and every certified pick on this list carries it.
Will a topper fix a mattress that sags?
A thicker topper can mask mild softening and add comfort on top of a tired mattress. However, it cannot repair broken support or deep dips, so owners with significant sagging usually find it a stopgap rather than a long-term fix.
How do I keep a memory foam topper from sliding?
Some toppers, like the ViscoSoft Select, include anchor straps to hold them in place. For others, a tightly tucked fitted sheet or a non-slip mattress pad underneath helps keep the topper from shifting overnight.
The verdict
Based on specs, certifications, and owner feedback, the Tempur-Pedic TEMPUR-Topper Supreme is our overall winner for its deep pressure relief and durable certified foam. Hot sleepers who want the strongest cooling should look at the GhostBed Memory Foam Topper with its phase-change cover, while budget shoppers get a reliable upgrade from the Linenspa 2 Inch Gel Infused Topper. Side sleepers chasing extra cushioning will be best served by the plush Nectar Memory Foam Topper.
