Best Cooling Mattress for Hot Sleepers in Australia (2026 Guide)

Why you sleep hot — and how your mattress is involved

To fall and stay asleep, your body needs to drop its core temperature slightly. A mattress that traps heat fights against that, leaving you tossing, sweating and waking up. The main culprit is dense foam with no airflow: it moulds around you and holds warmth. The fix is a mattress that lets heat escape — plus the right cover and bedding. In Australia's warm climate, breathability matters more than almost anywhere.

Your body naturally lowers its core temperature to fall and stay asleep, so a bedroom or bed that traps heat can leave you restless. Australia's Sleep Health Foundation recommends keeping the bedroom cool and well-ventilated for better sleep — and your mattress plays a big part in that.

What actually makes a mattress sleep cool

The single biggest factor is the core: a pocket-spring (hybrid) core has open space for air to move, while a solid foam core doesn't.

Our top pick for hot sleepers: the Newentor Hybrid

The Newentor Hybrid is built to breathe:

• Individually wrapped pocket springs create airflow channels through the mattress, so heat doesn't build up.
• Breathable bamboo cover helps wick moisture and feels cool to the touch.
• Medium-firm 7-zone support — you get cooling without giving up back support or pressure relief.
• 120-night trial + 10-year warranty so you can test it through a warm stretch at home.

Want plush comfort that still sleeps cool? The Newentor Hybrid Pro pairs the pocket-coil core with gel-infused memory foam, which draws heat away better than standard memory foam.

Sleep cooler tonight — beyond the mattress

A cool bed is a system, not just one product. Even on a great mattress, these help:

• Add a breathable cooling topper if your current bed runs warm but you're not ready to replace it.
• Switch to natural-fibre sheets — cotton, linen or bamboo breathe; polyester traps heat.
• Use a higher-loft, breathable pillow — your head and neck are major heat-loss points.
• Cool the room: a fan or open window moving air over the bed makes a big difference.

Hot sleeper with other needs?

• Hot sleeper with back pain: a medium-firm cooling hybrid gives both airflow and support — see our Best Mattress for Back Pain guide.
• Hot sleeper who sleeps on their side: you still need shoulder/hip pressure relief — see Best Mattress for Side Sleepers.

How Newentor compares

See the bigger picture: Best Mattress Australia, Newentor vs Emma, and Newentor vs Ecosa.

How we make these recommendations

These picks are based on each mattress's construction and breathability (core type, cover material, comfort-layer foams), how well it suits Australia's warm climate, the length of the sleep trial and warranty, and feedback from thousands of verified Newentor customer reviews. Last updated: June 2026.

Frequently Asked Questions

What type of mattress is best for hot sleepers?
A hybrid with a pocket-spring core is best for hot sleepers, because the springs create airflow that lets body heat escape. Pair it with a breathable natural-fibre cover and sheets for the coolest sleep.

Is Newentor a cooling mattress, and is it good for hot sleepers?
Yes. Newentor mattresses are breathable hybrids with a pocket-spring core and a bamboo cover, so air moves through instead of trapping heat — a good fit for hot Australian nights.

Do memory foam mattresses sleep hot?
Traditional all-foam memory foam tends to sleep warm because it's dense and moulds around you, restricting airflow. Gel-infused foam over a spring core, like in a hybrid, sleeps noticeably cooler.

Are hybrid mattresses cooler than memory foam?
Generally yes. The pocket-spring core in a hybrid allows air to circulate, while a solid foam core holds heat, so hybrids usually sleep cooler.

How can I make my mattress cooler without buying a new one?
Add a breathable cooling topper, switch to cotton, linen or bamboo sheets, use a breathable pillow, and keep air moving over the bed with a fan or open window.

Does a cooling mattress really work?
A cooling mattress won't refrigerate you, but a breathable hybrid genuinely sleeps cooler than dense all-foam by letting heat escape rather than trapping it. Bedding and room temperature also play a big part.

What's the best cooling mattress if I also have back pain?
A medium-firm cooling hybrid gives you both airflow and zoned support for the spine — the Newentor Hybrid is a strong all-rounder. See our Best Mattress for Back Pain guide for more.

Why do I sleep so hot at night?
Often it's a heat-trapping mattress or bedding. Dense foam, synthetic sheets and a warm room all stop your body from cooling down for sleep; a breathable hybrid and natural-fibre bedding help reverse that.