A cooling mattress topper is a layer added on top of an existing mattress, built from materials that resist heat build-up rather than trapping it the way standard memory foam does. Anyone searching for the best cooling mattress topper australia has on offer is usually trying to solve one specific problem: waking up overheated on a mattress that otherwise still feels comfortable, rather than needing to replace the mattress itself.
Cooling toppers sold in Australia rely on a handful of different approaches. Gel-infused memory foam actively absorbs and disperses heat rather than trapping it against the body. Natural latex is breathable by its own cell structure, without needing any cooling additive. Ventilated foam uses laser-cut holes to create physical airflow through the topper. Bamboo pillowtops use a naturally moisture-wicking fabric cover over a simpler fill, trading some cooling strength for plush cushioning and a lower price.
Most cooling toppers run between 5 and 7 centimetres (2 to 2.75 inches) thick, with a deeper profile generally meaning stronger cooling technology and a bigger shift in overall feel. The picks below were assessed on cooling technology, elastic skirt depth, cover breathability, and trial or warranty length, since a topper that slides off the mattress within a week solves nothing regardless of how it sleeps.
This guide compares gel-infused, natural latex, ventilated and bamboo pillowtop toppers from Australian retailers. If the mattress underneath is the actual problem rather than its temperature, our guide to the firm mattress options covers full mattress replacements instead.
Quick Picks
Newentor Cooling Mattress Topper
Six-layer build with gel-visco memory foam and a flip option between two hardness levels.
CHECK CURRENT PRICE
Giselle Natural Latex Mattress Topper
100% natural latex with honeycomb texture ventilation, breathable by material rather than additive.
CHECK CURRENT PRICE
Giselle Ventilated Cool Gel Topper
Laser-cut ventilation holes through a gel-reinforced memory foam core, under a bamboo cover.
CHECK CURRENT PRICEBest Cooling Mattress Topper Australia Compared
| Product | Link | Type | Best For | Key Spec |
|---|---|---|---|---|
| Newentor Cooling Mattress Topper | Check price | Gel-visco memory foam | Purpose-built cooling technology | 2 hardness levels, flip design |
| Giselle Natural Latex Mattress Topper | Check price | Natural latex | Natural material breathability | Honeycomb ventilation |
| Giselle Ventilated Cool Gel Topper | Check price | Gel memory foam | Physical ventilation plus gel | Laser-cut ventilation holes |
| Straight 2 Sleep Mattress Topper | Check price | Memory foam | Hot sleepers wanting an established brand | 120-night trial |
| Giselle Bamboo Pillowtop Topper | Check price | Bamboo pillowtop | Plush cushioning with breathability | 1500GSM fill |
| Giselle Budget Bamboo Pillowtop | Check price | Bamboo pillowtop | Budget breathable refresh | 1000GSM fill |
1. Newentor Cooling Mattress Topper – Best Cooling Technology
A six-layer build stacks gel-visco memory foam over high-resilience comfort foam, with a moisture-absorbing, quick-dry cover on top and a flip option between two hardness levels.
The gel-visco layer is specifically engineered to sleep cooler than standard memory foam, rather than cooling being a side effect of a thinner profile. The flip option also means a couple can each choose their own hardness level on the same topper.
At 7cm it’s a genuine topper rather than a thin pad, so it needs a deep-fitted sheet to hold it in place. It suits anyone who wants dedicated cooling technology rather than a general-purpose support topper that happens to run cool.
Pros
- Purpose-built cooling technology, not just a thin profile
- Flip design offers two hardness levels on one topper
- 10-year warranty and 120-night trial
Cons
- 7cm profile needs deep-fitted sheets
- Costs more than the bamboo pillowtop options on this list
Key specs: 7cm profile, gel-visco memory foam, 2 hardness levels, 10-year warranty.
CHECK CURRENT PRICE2. Giselle Natural Latex Mattress Topper – Best Natural Latex Pick
100% natural latex with a honeycomb texture built into the material itself, rather than a synthetic foam with cooling additives layered on top.
Latex is naturally more breathable than memory foam by its cell structure, and the honeycomb texture increases air circulation further. A 7-zone comfort system adds targeted pressure relief on top of the material’s natural cooling properties.
Natural latex costs more than the synthetic foam and bamboo options on this list, which suits buyers who specifically want a natural material over a synthetic one, more than it suits the most price-sensitive shoppers here.
Pros
- 100% natural latex with genuine material breathability
- Anti-bacterial and anti-dust-mite properties
- 7-zone targeted pressure relief
Cons
- Highest price point among the toppers in this guide
- Heavier to move and rotate than a foam topper
Key specs: 5cm natural latex, honeycomb ventilation, Queen size, 5-year warranty.
CHECK CURRENT PRICE3. Giselle Ventilated Cool Gel Topper – Best Ventilated Design
Laser-cut ventilation holes run through a gel-reinforced memory foam core on this topper, under a removable bamboo fabric cover.
The ventilation holes add a physical airflow path rather than relying on gel infusion alone, which helps on nights the gel isn’t enough by itself. Over 1000 support points spread weight more evenly than a flat foam slab would.
At 12cm it sits between the thinner bamboo pillowtops on this list and the deeper Newentor topper above. It’s sized to King Single specifically here, so check sizing carefully if you need a different bed size.
Pros
- Laser-cut ventilation holes add physical airflow, not just gel infusion
- Anti-skid base keeps it in place overnight
- Bamboo cover is removable and washable
Cons
- Listed in King Single here, so other sizes need checking separately
- 12cm profile sits between the thinner and deeper options on this list
Key specs: 12cm profile, ventilated cool gel memory foam, King Single, bamboo cover.
CHECK CURRENT PRICE4. Straight 2 Sleep Mattress Topper – Best for Hot Sleepers
Three layers of memory foam build toward a 3-zone support system on this topper, cradling the shoulders, hips and knees under a removable nylon and polyester cover.
An extra-deep 38cm elastic skirt is a genuinely useful detail, since a topper that shifts off an old mattress overnight defeats the purpose regardless of how well it sleeps. The layered foam also isolates motion well for shared beds.
The marketing leans on cooling and support in roughly equal measure, so anyone chasing the strongest cooling technology specifically may prefer the Newentor or the ventilated Giselle above. It suits buyers who want an established, widely reviewed option with a long trial period.
Pros
- Extra-deep elastic skirt fits securely over old mattresses
- 3-zone memory foam support layout
- 120-night trial period
Cons
- Cooling is one of several claims rather than the sole focus of the design
- Costs more than the bamboo pillowtop options on this list
Key specs: 3-layer memory foam, 3-zone support, 120-night trial, 5-year warranty.
CHECK CURRENT PRICE5. Giselle Bamboo Pillowtop Topper – Best Breathable Pillowtop
An 11cm pillowtop with dense 1500GSM hollow fibre filling under a bamboo fabric cover, built more for cushioning than the gel or latex cooling technologies above.
Bamboo fabric is naturally moisture-wicking and breathable, so while it doesn’t use gel or ventilation holes, the cover material itself helps regulate temperature better than a standard polyester pillowtop would.
It suits buyers who want a plush pillowtop feel with genuine breathability as a bonus, rather than someone shopping specifically for the strongest cooling technology on the market. The one-year warranty is the shortest on this list.
Pros
- Dense 1500GSM filling for plush cushioning
- Naturally breathable bamboo cover
- Machine washable
Cons
- One-year warranty, shortest on this list
- Cooling comes from the bamboo fabric alone, without gel or ventilation
Key specs: 11cm pillowtop, bamboo cover, Queen size, 1-year warranty.
CHECK CURRENT PRICE6. Giselle Budget Bamboo Pillowtop – Best Budget Breathable Pick
A thinner 5cm bamboo pillowtop with a 1000GSM fill, priced below every other topper in this guide.
Sewn-pocket construction stops the fill from bunching or going lumpy over time, a common failure point on cheap pillowtops, and the bamboo cover carries the same natural breathability as the pricier bamboo pick above, just in a slimmer profile.
It’s the entry point on this list rather than the strongest cooling performer, and suits buyers who want a breathable, budget-friendly refresh for an ageing mattress rather than a dedicated temperature-control solution.
Pros
- Lowest price point on this list
- Bamboo cover adds natural breathability
- Sewn pockets prevent filling from shifting
Cons
- Thinnest profile on this list at 5cm
- Cooling benefit is milder than the gel, latex or ventilated picks above
Key specs: 5cm profile, bamboo polyester blend, 1000GSM fill, Queen size.
CHECK CURRENT PRICEHow to Choose a Cooling Mattress Topper
Know the difference between gel, latex and ventilated cooling. Gel-infused foam absorbs heat rather than trapping it, natural latex is breathable by its cell structure without any additive, and laser-cut ventilation holes create physical airflow through the topper. Combining more than one approach, like a gel-infused topper with ventilation holes, tends to sleep cooler than either alone.
Match the topper’s thickness to what your mattress needs. A thin bamboo pillowtop refreshes an ageing mattress that has softened slightly, while a deeper 6 to 7 centimetre memory foam topper can meaningfully change the firmness of a bed that’s too hard, not just its temperature.
Check the elastic skirt depth before buying. A topper with a shallow skirt can work loose overnight on a deep mattress, defeating the point of buying one at all. Look for at least a 30 to 40 centimetre elastic skirt if your mattress is thicker than the Australian standard.
Don’t expect a topper to fix a mattress that’s fundamentally wrong for you. A cooling topper changes surface temperature and adds a layer of cushioning, but it won’t turn a mattress that’s too soft into one that’s too firm, or the reverse. If the base mattress itself needs replacing rather than refreshing, no amount of topper will substitute for that.
Consider washable covers over the whole topper. A removable, machine-washable cover is easier to keep clean than a topper that needs spot cleaning or professional care, particularly for anyone with allergies who needs to wash bedding more often than most.
Kids’ rooms benefit from cooling toppers too. A child prone to overheating overnight doesn’t necessarily need a whole new mattress. A slimmer cooling topper sized to a single or king single bed can help, and our guide to the best kids mattress options covers full mattress replacements if that’s what’s actually needed instead.
Frequently Asked Questions
Do cooling mattress toppers actually work?
Yes, though the effect depends on the technology used. Gel-infused foam and natural latex both measurably reduce heat retention compared to standard memory foam, and ventilated designs add physical airflow on top of that. A cooling topper won’t make a bed cold, but it can noticeably reduce the overheating that dense memory foam is otherwise prone to.
What is the best material for a cooling mattress topper?
Natural latex and gel-infused memory foam are the two most effective materials, for different reasons. Latex is breathable by its natural cell structure, while gel-infused foam actively absorbs and disperses heat rather than trapping it the way standard memory foam does.
How thick should a cooling mattress topper be?
Most cooling toppers run between 5 and 7 centimetres. A thinner 5cm topper works well as a light refresh over a mattress that’s already comfortable, while a 7cm topper can meaningfully change the feel and temperature of an older or firmer mattress.
Can a mattress topper replace an old mattress?
A topper can improve comfort and temperature on a mattress that’s still structurally sound, but it can’t fix sagging, broken springs, or a mattress that’s genuinely worn out. If the base mattress itself is the problem, replacing it will do more than any topper can.
Do mattress toppers help with night sweats?
A cooling topper with gel infusion, natural latex, or ventilation holes can reduce the heat build-up that contributes to night sweats, though it won’t address medical causes of excessive sweating. Breathable, moisture-wicking covers also help by pulling moisture away from the skin rather than trapping it.
How do I stop a mattress topper from sliding off the bed?
Check the elastic skirt depth before buying. A topper with at least a 30 to 40 centimetre elastic skirt will grip a standard Australian mattress securely, while a shallow skirt can work loose overnight, particularly on deeper or thicker mattresses.
Verdict
For most Australian sleepers who overheat overnight, the Newentor Cooling Mattress Topper’s gel-visco layers and flip-hardness design make it the strongest dedicated cooling option, while the Giselle Natural Latex Mattress Topper suits anyone who prefers a natural material over synthetic foam. Buyers after a lighter, cheaper refresh rather than the strongest possible cooling technology should look to the Giselle Budget Bamboo Pillowtop instead.
