King Single Mattresses | Extra Space & Comfort

King Mattresses Australia

Experience ultimate comfort and luxury with Onebed's king mattresses, designed for Australians who desire maximum space and superior support. Whether you’re a couple wanting plenty of room to stretch out, or a family who shares their sleeping space with young children, the King mattress offers a generous sleeping area that transforms your bedroom into a restful sanctuary.

In Australia’s diverse living spaces—from spacious suburban homes to inner-city apartments where master bedrooms are treasured—the King mattress remains the top choice for those who prioritise comfort, space, and quality. With a 125-night trial and a 15-year warranty, investing in a Onebed King mattress is easy, risk-free, and rewarding. Explore the collection below and find the perfect mattress to upgrade your sleep experience.

best seller

Onebed Essential

A smarter sleep solution with adjustable firmness, breathable comfort, and stable support—perfect for everyday value and lasting quality

$800.00 $480.00

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highest rated

Onebed Original 11"

An upgraded classic with a taller profile, enhanced support zones, and adjustable firmness—designed to deliver custom comfort and zero motion transfer every night

$1,000.00 $600.00

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new

Onebed Max

Customisable modules and a 5-zoned pocket spring base combine with advanced layers for a hybrid mattress delivering breathable comfort and lasting support.

$1,750.00 $1,225.00

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Onebed Essential King Мattress

Custom Comfort Tri-Layer

Rearrange three foam sections to reach your perfect feel.

Auralux™ Responsive Cushion

Blends softness with bounce while channelling heat away.

Gel Memory Relief Layer

Spreads body weight evenly and dissipates warmth.

Zoned Support Platform

Engineered base maintains spinal alignment for years.

Silky Tencel® Breathable Cover

Moisture-wicking surface adds a luxe finishing touch.

Onebed Original Gen3 KingMattress

Changeable Comfort Stack

Swap layers to achieve your favourite firmness—no fuss.

11-Inch, Five-Zone Core

Extra-thick base carved into zones for head-to-toe support.

Auralux™ & Gel Memory Synergy

Breathable bounce meets pressure-relief that stays cool.

Motion-Isolation Engineering

Movement stays where it starts for undisturbed rest.

Fresh-Feel Tencel® Sleeve

Detachable cover made from sustainably sourced fibres.

Onebed Max King Mattress

Precision-Zoned Pocket Springs

Responsive coils give head-to-toe support and minimise movement transfer.

Airy TPE Grid Cushioning

Hyper-elastic grid relieves pressure and boosts airflow night-long.

Thermo-Regulating Foam Layers

Gel memory foam plus Auralux™ contour the body while staying cool.

Adjustable Feel Design

Swap top foams under the zip cover to suit your comfort mood.

Reinforced Edge & Vent Ports

Solid edge support enlarges the usable surface, mesh vents aid breathability.

Size of a king mattress

Perfect for couples or families, a king mattress offers plenty of room for two adults to sleep comfortably without disturbing each other. Ideal for master bedrooms, it’s the go-to choice for those who prioritize comfort and luxury in their sleeping space

King Single - 203 x 107 cm

Benefits of Onebed king Mattresses

Premium Quality Materials

Onebed mattresses are made from high-density, premium-grade materials designed for long-lasting comfort and durability

Pressure Relief and Support

Engineered to provide balanced support and even pressure distribution, promoting proper spinal alignment for healthier sleep

Temperature Regulation

Each mattress is equipped with cooling foam layers and breathable materials to ensure a cool, comfortable sleeping environment

Motion Isolation Technology

The combination of foam and pocket springs minimizes motion transfer, making Onebed king mattresses perfect for couples who need undisturbed sleep

Durability and Long Warranties

Onebed mattresses are built to last, with warranties extending up to 15 years, ensuring you enjoy consistent comfort and support for years to come

FAQs
About King Mattresses

How do I choose the right firmness level?

Selecting the right firmness level depends on your sleeping style and personal preferences. Onebed offers customizable mattresses with various firmness options to suit all body types and sleep positions, ensuring your perfect sleep comfort.

How many people can sleep on a King mattress?

A king mattress comfortably accommodates two adults, providing ample space for both partners to sleep without disturbing each other. It’s also ideal for families who co-sleep with young children, offering plenty of room.

How long does a King mattress last?

With high-quality construction and materials, a Onebed king mattress is designed to last up to 15 years, far exceeding the industry standard for durability. Each mattress comes with a long-term warranty to ensure peace of mind.

Can I return the mattress if it doesn’t suit me?

Yes, Onebed offers a generous 125-night trial. If the mattress isn’t right for you, you can return it within the trial period for a full refund, making sure you find the perfect fit for your sleep needs.

Experience the Spacious Comfort of Onebed King Mattresses

For Australians who demand space, support, and cooling comfort, Onebed’s King mattresses deliver on every front. Designed with advanced sleep technology, premium materials, and a deep understanding of local needs, our King mattresses transform your bedroom into a haven of restful sleep.

Still weighing your options? Our detailed guides can help you select your perfect feel and help you choose, for example, between foam and spring mattresses, or the mattress lifespan.

Ready to invest in your best night’s sleep? Explore Onebed’s King mattress range today, risk-free with our 125-night trial and backed by a 15-year warranty. Join thousands of Australians who wake up refreshed, rejuvenated, and ready to take on the day.