King Single Bed Mattresses
-
Verona 25cm Top Pocket Spring Medium Firm Premium Foam Mattress - King Single
Rated 4.7 out of 5 stars3RRP $474.99Regular price $259.42Save $216Sale price Now $259.42 Regular priceUnit price per -
Aster 34cm Latex Hybrid 5-Zone Pocket Spring Mattress - King Single
RRP $484.99Regular price $299.22Save $186Sale price Now $299.22 Regular priceUnit price per -
Darien 20cm 5-Zoned Pocket Spring Mattress - King Single
Rated 5.0 out of 5 stars2RRP $266.99Regular price $224.05Save $43Sale price Now $224.05 Regular priceUnit price per -
Ysabel 35cm Spring Mattress Bed Pocket Egg - King Single
RRP $479.99Regular price $329.76Save $150Sale price Now $329.76 Regular priceUnit price per -
Caleb 34cm Mattress Euro Top Pocket Spring Coil with Knitted Fabric Medium Firm Thick - King Single
RRP $717.46Regular price $609.84Save $108Sale price Now $609.84 Regular priceUnit price per -
Zera 13cm Mattress Spring Coil Bonnell Sleep Foam Medium Firm - King Single
RRP $223.26Regular price $189.77Save $33Sale price Now $189.77 Regular priceUnit price per -
Annika 34cm 5-Zone Pocket Spring with Latex & Memory Foam - King Single
RRP $382.99Regular price $279.49Save $104Sale price Now $279.49 Regular priceUnit price per -
Renley 25cm Memory Foam Mattress Cooling Gel - King Single
RRP $377.99Regular price $284.58Save $93Sale price Now $284.58 Regular priceUnit price per -
Dara 18cm Mattress Spring Premium Top Foam Medium Firm - King Single
RRP $226.99Regular price $214.75Save $12Sale price Now $214.75 Regular priceUnit price per -
Fina 23cm Spring Mattress Pocket Coil Sleep Foam Extra Firm - King Single
RRP $299.27Regular price $254.38Save $45Sale price Now $254.38 Regular priceUnit price per -
Elisa 30cm Mattress Spring Premium Top Foam Medium Firm - King Single
Rated 5.0 out of 5 stars2RRP $364.99Regular price $294.55Save $70Sale price Now $294.55 Regular priceUnit price per -
Charlotte 22cm Spring Foam Mattress Medium Firm Dark Grey - King Single
RRP $279.99Regular price $254.53Save $25Sale price Now $254.53 Regular priceUnit price per -
Saffira 30cm Thick Euro Top Pocket Spring Mattress - King Single
Rated 5.0 out of 5 stars1RRP $374.99(Was $198.00)Regular price $165.00Sale price Now $165.00Regular priceSave $210!
(Was $198.00)Unit price perSave $210!
Sold out -
Amaris 20cm Memory Foam Mattress Cooling Gel - King Single
RRP $297.99Regular price $194.73Save $103Sale price Now $194.73 Regular priceUnit price perSold out -
Rio 21cm Thick Pillow Top Spring Mattress - King Single
Rated 4.2 out of 5 stars10RRP $244.99Regular price $239.68Save $5Sale price Now $239.68 Regular priceUnit price perSold out -
Riley 30cm 5-Zone Cooling Gel Memory Foam Pocket Spring Mattress - King Single
RRP $349.99Regular price $279.99Save $70Sale price Now $279.99 Regular priceUnit price perSold out -
Scylla 30cm Cooling Mattress Pocket - King Single
RRP $574.99Regular price $349.26Save $226Sale price Now $349.26 Regular priceUnit price perSold out
You might need these too
Shop Affordable King Single Bed Mattresses
Find a cheap king single mattress from Factory Buys with free delivery on every order. Larger than a standard single but a practical alternative to a double, the king single is a smart choice for growing children, teenagers, guest rooms, and anyone who needs more stretch-out space without the footprint of a larger bed. The range covers pocket spring, memory foam, euro top, gel foam, and latex hybrid builds, so there is a comfort level to match every type of sleeper. Every cheap king single mattress ships free to your door, and choosing a matching king single bed frame or king single bed base at the same time takes the guesswork out of sizing compatibility.
Who Is a King Single Mattress Right For
The king single mattress sits at 107cm x 203cm, placing it between a standard single and a double and making it one of the most practical sizes for growing children, teenagers, and single adults who want more room without upgrading to a larger bed size. It works especially well in guest rooms and secondary bedrooms where floor space is limited. Before ordering, check the product page to confirm the exact mattress height, particularly if you are pairing it with an existing base or frame. For shoppers building a new bedroom from scratch, king single bedroom packages combine the key pieces in one purchase, while king single bedroom suites bring in coordinated storage and bedside furniture for a complete setup.
Choosing the Right King Single Mattress Type
The range covers several build types suited to different sleep preferences, and it is worth comparing the construction details rather than just the price. Shoppers who prefer a spring-based feel will find pocket spring mattresses in a range of zone configurations and thickness levels, offering solid support with good motion isolation between sleep zones. Those prioritising pressure relief or a contouring feel tend to gravitate toward memory foam mattresses, particularly in medium or plush firmness ratings. Gel foam and latex hybrid builds are worth considering for temperature-sensitive sleepers, as both are designed to manage heat retention better than standard foam. Check the firmness rating, construction type, and mattress thickness on each product listing before deciding, as these details make a bigger difference to long-term sleep quality than the top style or sale badge.
Protecting Your Mattress and Adjusting the Feel
A king single mattress protector is one of the easiest ways to extend the life of a new mattress, guarding against moisture, dust mites, and everyday wear. It is particularly worth adding for mattresses in kids' rooms or guest setups that may not be in daily use. For those who want to soften or add support to the surface feel without replacing the whole mattress, a king single mattress topper sits on top and adjusts the comfort layer to suit your preference. Both accessories fit the king single size exactly and are simple to add to an existing setup.
Completing the King Single Bedroom
With the mattress sorted, size-matched bedding keeps the whole setup functional and well-fitted. King single sheet sets are cut to the exact dimensions, so there is no loose fabric or bunching around the corners. Pairing sheets with king single bed linen and a king single quilt cover in the same size means everything fits from the first use and stays that way through regular washing. Keeping sizes consistent across all bedding layers makes day-to-day management straightforward and extends the working life of each piece.
Why Shop at Factory Buys
Factory Buys is rated highly by verified customers on Trustpilot for value, quality, and reliable delivery. All king single mattresses come with a 12-month warranty, and the customer support team is available from 8am to 8pm, 7 days a week if anything comes up after your order arrives.
Which king single mattress is likely to suit who will be sleeping on it?
A king single mattress is a practical option when you want more room than a single without taking up as much space as a larger bed. The best choice depends on whether the mattress is for a growing child, a teenager, a guest room, or one sleeper who wants a bit more stretch-out space. It also helps to compare whether you prefer a softer feel, a firmer feel, or something more balanced for everyday comfort.
What should you check to make sure a king single mattress fits properly?
Start by matching the mattress to the correct bed size, then confirm the product page for the exact dimensions before ordering. Factory Buys uses Australian sizes, so choosing a king single mattress that matches your bed base or bed frame is the right first step. If you use a protector, topper, or fitted sheets, it is also worth checking the mattress height so everything fits properly.
Which details are most useful to compare between king single mattress listings?
The most useful differences are usually the feel, the overall construction, and the top style rather than the colour or the sale badge. Our range includes options such as euro top, tight top, pillow top, spring, foam, cooling, and pocket spring styles, so it helps to compare which build sounds most suited to your sleep preference. If edge support, temperature feel, or motion control matters to you, confirm those details on the listing before buying.
What should you keep in mind for everyday comfort, care, and living with a king single mattress?
The right mattress should feel practical for nightly use, not just appealing in the product name. Think about the sleep feel you want, how much cushioning suits you, and whether a lower or thicker profile will work better with your bedding setup. Free shipping applies to all mattresses Australia-wide with no exceptions, and before buying, it is worth checking the care guidance so rotating, protecting, and maintaining the mattress feels manageable over time.
What should you do if your king single mattress arrives damaged, incomplete, delayed, or not quite right?
All orders are dispatched from our warehouse within 1 to 2 business days. Delivery typically takes 1 to 12 business days, depending on your location and the courier. All products include a 12 month warranty, and our Customer Support team is available 8 am to 8 pm, 7 days per week. If you need help at any stage, visit our Contact Us page and include your order number plus a short description so we can assist sooner.

















