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King Single Matress
A king single matress refers to the Australian king single mattress size, written here using the common search variation “matress”. In Australia, a king single matress measures 107 cm wide x 203 cm long. In simple terms, it offers more width than a standard single while matching the length of a queen or king mattress, making it ideal for growing teenagers, tall sleepers and space-conscious homes.
Here’s why this matters: many Australians search for king single matress when they want extra sleeping comfort without upgrading to a much larger bed that dominates the room.
King single matress dimensions in Australia (cm)
Australian mattress sizing is standardised nationwide. A king single matress typically measures:
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Width: 107 cm
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Length: 203 cm
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Depth (height): usually 20–35 cm, depending on construction
The main reason people choose a king single matress is the extra length. At 203 cm long, it suits adults and taller teens far better than a standard single.
In simple terms, it’s a compact bed with adult proportions.
King single matress vs other mattress sizes
Understanding how a king single matress compares to other Australian sizes helps confirm whether it’s the right choice.
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Single mattress: 92 cm x 188 cm
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King single matress: 107 cm x 203 cm
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Double mattress: 138 cm x 188 cm
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Queen mattress: 153 cm x 203 cm
The key difference is that a king single matress is both wider and longer than a standard single, while still fitting into narrower bedrooms.
Types of king single matress options
King single matress designs vary by comfort level and construction. Common types include:
1. Foam king single matress
Lightweight, supportive and often more affordable. Ideal for children, teens and guest rooms.
2. Innerspring king single matress
Traditional coil support with good airflow. Popular for growing sleepers who want firmer support.
3. Hybrid king single matress
Combines foam layers with pocket springs for balanced comfort and durability.
4. Pillow-top king single matress
Adds an extra comfort layer on top, creating a more luxurious feel.
The main reason construction matters is long-term comfort—especially if the matress will be used daily.
How to choose the right king single matress
Selecting the right king single matress goes beyond size alone. Here’s a practical buyer’s guide:
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Check sleeper height
If the sleeper is over 170 cm tall, the 203 cm length is a major advantage. -
Choose firmness carefully
Medium firmness suits most sleepers, while firmer options suit back sleepers. -
Measure bed frame compatibility
Ensure the matress matches Australian king single frames only. -
Consider matress depth
Deeper matresses require fitted sheets with extra pocket depth. -
Plan for long-term use
A good-quality king single matress can last from childhood through adulthood.
In simple terms, buy once and buy well.
Benefits and use cases of a king single matress
The main benefit of a king single matress is comfort without wasted space. Key advantages include:
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Extra width compared to a single bed
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Full adult-length sleeping surface
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Ideal for narrow bedrooms
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Long-term value for growing sleepers
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Compatible with storage and trundle bases
Common use cases include children’s bedrooms, teen rooms, guest rooms, study–bedroom combinations and compact apartments.
King single matress and room size considerations
To comfortably fit a king single matress and surrounding furniture, designers recommend:
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Minimum room width: 240–260 cm
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Minimum room length: 300–320 cm
This allows space for:
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Walkways
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A bedside table or desk
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Wardrobe access
In simple terms, a king single matress suits rooms that feel tight with a double bed.
Bedding that fits a king single matress
Correct bedding is essential for comfort and appearance.
Australian king single bedding includes:
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Fitted sheet: 107 cm x 203 cm (with depth allowance)
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Flat sheet: Larger for proper tuck-in
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Doona cover: approx. 180 cm x 210 cm
Using standard single sheets on a king single matress usually results in poor fit and corner lift.
King single matress at House of Isabella Australia
At House of Isabella Australia, king single matress options are curated to suit Australian room sizes and lifestyles. Clear sizing in centimetres ensures customers can plan with confidence.
Why Australians choose House of Isabella:
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Buy Now, Pay Later with Afterpay & Zip
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Fast delivery Australia-wide
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East & West Coast warehouses for efficient fulfilment
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Large in-stock catalogue ready to ship
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Exclusive, design-led bedroom furniture
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Australian-based customer care
Design influences inspired by collections such as Florabelle Collection, Gallery Home and Emac & Lawton ensure king single beds feel refined, not purely functional.
King single matress trends for 2025 (Australia)
In 2025, demand for king single matress options continues to grow.
Thicker comfort layers
Hybrid and pillow-top matresses are becoming more popular.
Storage bed pairings
King single matresses are frequently combined with drawer or lift-up bases.
Teen-to-adult designs
Styles are less juvenile, supporting long-term use.
Compact-home optimisation
Furniture is increasingly designed specifically around the 107 x 203 cm footprint.
The main reason these trends matter is that king single beds are no longer seen as temporary solutions.
Styling advice for rooms with a king single matress
Smart styling makes a king single bedroom feel balanced and intentional.
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Use proportionate bedside tables
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Choose vertical storage to save floor space
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Add a rug wider than the bed for visual balance
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Keep colours light and cohesive
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Avoid bulky furniture near the bed
In simple terms, good layout matters as much as the matress itself.
Common questions about king single matress sizing
What are the exact king single matress dimensions in Australia?
107 cm wide x 203 cm long.
Is a king single matress suitable for adults?
Yes. The length suits adults, and the width is ideal for solo sleepers.
Is a king single matress the same overseas?
No. Australian sizing differs from US and European standards.
Related glossary terms
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King single bed
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Single mattress dimensions
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Bed sizes Australia
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King single bedding
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Bedroom furniture
Disclaimer
Mentions of brands such as Florabelle Collection, Gallery Home, Café Lighting & Living, Zaffero, Emac & Lawton and others are included purely for descriptive and contextual purposes. House of Isabella Australia is not affiliated with, endorsed by, or associated with these brands.
Disclaimer: All trademarks, brand names and product names mentioned on this website are the property of their respective owners. Any references are made for identification, informational or comparative purposes only, and do not imply any affiliation, endorsement, sponsorship or authorisation.
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