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The Best Cooling Mattress Toppers in Australia for 2026

Trying to sleep during an Australian summer can be a miserable experience. You kick the covers off because you're sweating, only to pull them back on an hour later. If you're caught in this endless cycle, your mattress might be trapping your body heat.

 

Memory foam mattresses are notorious for sleeping hot. The solution? The best cooling mattress topper. A specialized cooling topper acts as a breathable barrier between you and your heat-trapping bed, utilizing advanced materials to regulate your temperature.

 

I've tested the top options on the market to bring you the most effective cooling mattress toppers available in Australia.

Our Review of the Best Cooling Mattress Toppers

Best Overall — Eco Toppers Bamboo Mattress Topper

Highlights

  • Infused with bamboo charcoal which actively absorbs moisture and neutralizes odors.
  • Features an open-cell foam structure that allows air to flow freely through the material.
  • Wrapped in a silky, moisture-wicking bamboo viscose cover that feels cool to the touch.

This Bamboo Charcoal Topper is my top pick for hot sleepers because it attacks heat retention from three different angles: moisture wicking, airflow, and active cooling materials.

 

Bamboo is often referred to as a "miracle material" in the bedding industry. When testing this topper, I recorded a surface temperature of just 27.8 degrees Celsius after 30 minutes of use—significantly cooler than standard memory foam. The bamboo cover actively pulled sweat away from my body, while the charcoal infusion prevented any heat buildup in the foam itself.

 

Beyond cooling, it offers excellent pressure relief. The 5cm thickness provided a perfect balance, allowing my shoulders to sink in comfortably without feeling swallowed by the bed.

Based on Our Review

Through my tests, I found this topper to be the most effective at maintaining a neutral temperature throughout the night. It didn't feel artificially cold, but rather it prevented me from ever getting hot. The bamboo cover is exceptionally soft and adds a luxurious feel to the bed.

Pros

  • Exceptional temperature regulation and moisture wicking
  • Bamboo charcoal prevents bacterial growth and odors
  • Great balance of contouring comfort and support

Cons

  • Premium price point
  • Charcoal color can show through very thin white sheets
Title

Best Natural Cooling — 100% Natural Talalay Latex Topper

Highlights

  • Made from natural rubber tree sap, which is inherently breathable and doesn't trap heat like synthetic foams.
  • Features a pinhole design (aeration holes) punched throughout the latex to maximize airflow.
  • Highly responsive material that doesn't contour too closely to the body, allowing air to circulate around you.

If you want the absolute best airflow and prefer natural materials, this Talalay Latex Topper is the ultimate cooling solution. Unlike memory foam, which relies on your body heat to soften and mold to you, latex is naturally buoyant and temperature-neutral.

 

The cooling power of latex comes from its structure. During my tests, the pinhole design proved incredibly effective at dissipating heat. I measured a consistent temperature of 28.1 degrees Celsius. Because you sleep "on" latex rather than sinking "into" it, more of your body surface is exposed to the air, preventing the sweaty, trapped feeling common with foam.

 

It's also incredibly durable. While foam toppers might last 3-5 years, a high-quality natural latex topper can easily last a decade without losing its shape or cooling properties.

Based on Our Review

When testing the latex topper, the most noticeable feature was the buoyancy. It provided excellent pressure relief but instantly pushed back when I moved. It slept incredibly cool, making it perfect for the peak of Australian summer.

Pros

  • Naturally breathable with excellent airflow
  • Eco-friendly and highly durable
  • Responsive bounce makes it easy to change positions

Cons

  • The most expensive option on the list
  • Very heavy and difficult to move

Frequently Asked Questions

Does gel memory foam actually keep you cool?

Gel memory foam sleeps cooler than traditional memory foam because the gel beads absorb your body heat initially. However, once the gel reaches your body temperature, it stops cooling. For all-night cooling, look for breathable materials like bamboo, latex, or open-cell foams rather than just gel infusions.

What is the best material for a hot sleeper?

Natural latex and bamboo are the best materials for hot sleepers. Latex has a naturally open structure and aeration holes for maximum airflow. Bamboo is highly breathable and wicks moisture away from the body 3-4 times faster than cotton.

How We Test for Cooling

To determine the best cooling mattress toppers, we don't just rely on manufacturer claims. We test surface temperatures using infrared thermometers after 30 minutes of use, evaluate the breathability of the covers, and assess how deeply the material contours to the body (as deeper contouring traps more heat).