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King Single Mattresses

A king single mattress offers extra room to stretch compared to a standard single, making it an ideal choice for growing teenagers, taller sleepers, and guest bedrooms. At Bedworld, we stock a wide range of king single mattresses in Perth designed to deliver comfort, durability, and long-term support.

Why Choose a King Single Mattress?

A king single mattress is a practical step up from a single, offering:

  • Extra space for comfortable sleep
  • Ideal support for growing children and teenagers
  • Great option for taller individuals
  • A versatile solution for guest rooms
  • A smart compromise for smaller bedrooms

It bridges the gap between a single and double bed, delivering improved comfort while still saving space.

Choose the Right Comfort Level

At Bedworld, our king single mattresses are available in:

Medium Feel

Balanced comfort and support for most sleepers.

Firm Feel

Ideal for back sleepers or those needing stronger spinal support.

Plush Feel

Soft cushioning for side sleepers seeking pressure relief.

Mattress Types Available

Pocket Spring Mattresses

  • Individually wrapped springs for reduced motion transfer
  • Strong structural support
  • Excellent airflow for cooler sleep

Memory Foam Mattresses

  • Contours to your body
  • Reduces pressure points
  • Minimises movement disturbance

Hybrid Mattresses

  • Combination of foam and spring technology
  • Balanced support with lasting durability

Complete Your Bedroom Setup

Pair your king single mattress with a supportive bed base or stylish king single bed frame to maximise comfort and extend mattress lifespan. We offer a variety of timber, fabric, and ensemble base options to suit different bedroom styles and budgets.

For growing families, two king single mattresses can also be combined to create a super king size sleeping space.

  • Dark gray hybrid mattress with quilted top and tufted buttons
    Mlily Onyx Hybrid Mattress
    On sale from $2,299.00
    Add to Cart
    Quickshop Stay cool and supported with the Mlily Onyx Hybrid Mattress. Featuring Copper...
  • Memory foam mattress on dark base with white cover and two pillows
    Mlily Carbon Cool Memory Foam Mattress 28 cm – Pressure Relief & Support
    On sale from $1,499.00
    Add to Cart
    Quickshop Best Price Guarantee at Bedworld Perth, Australia! You are guaranteed the best...
  • Hybrid mattress with white top and dark grey sides, 28 cm height
    Mlily Carbon Cool Hybrid Mattress 28cm
    On sale from $1,499.00
    Add to Cart
    Quickshop Discover the Mlily CarbonCool Hybrid Mattress 28cm. Cooling memory foam and pocket...
  • Contour mattress warranty and features infographic
    SlumberCare Hybrid Contour Mattress | 3 Zone Support & Gel Foam
    On sale from $1,299.00
    Add to Cart
    Quickshop Experience a healthier night's sleep on the SlumberCare Hybrid Contour Mattress. Features...
  • Orthopaedic mattress with white quilted top, blue side panel and logo label
    SLUMBERCARE GENUINE ORTHOPAEDIC VERVE 5+5 MATTRESS 28CM
    On sale from $1,599.00
    Add to Cart
    Quickshop Experience superior support and luxurious rest with the Slumbercare Genuine Orthopaedic Verve...
  • White mattress with quilted top and stitched border, medium firm feel
    TENCEL 1500 Loren Williams Mattress
    On sale from $799.00
    Add to Cart
    Quickshop Experience European luxury sleep with the Loren Williams TENCEL™ 1500 Mattress. Hypoallergenic,...
  • Pillow-top mattress with white quilted surface and dark edge piping
    Chiro Collective Posture Care+ Mattress
    On sale from $599.00
    Add to Cart
    Quickshop Chiro Collective Mattress Experience lasting comfort and reliable support with the Chiro...
  • White pocket-sprung mattress with quilted top and low profile sides
    TENCEL 1200 Loren Williams Mattress
    On sale from $599.00
    Add to Cart
    Quickshop Experience deep, restorative sleep with the Loren Williams TENCEL™ 1200 Loren Williams...
  • Medium mattress with quilted white top, gray sides, navy simplythebest accents
    Grand Posture Natural Medium Mattress By Simply The Best
    On sale from $2,199.00
    Add to Cart
    Quickshop If you are looking 5 star HOTEL style Luxurious feeling mattress, no...
  • Light gray Manchester mattress on dark wooden bed frame
    A.H. Beard Domino Manchester Mattress
    On sale from $1,199.00
    Add to Cart
    Quickshop Key Features: Conforma 5-Zone Pocket Coil Support SystemTrusted by Australian Institute of...
  • White quilted mattress with plush pillow-top surface and stitched side edges
    Loren Williams Sienna Pure Gentle Mattress
    On sale from $799.00
    Add to Cart
    Quickshop Experience cloud-like comfort with the Loren Williams Sienna Pure Gentle Mattress. Designed...
  • White mattress with quilted top, contoured side panels, and stitched border
    Loren Williams Sienna Luxe Mattress
    On sale from $1,899.00
    Add to Cart
    Quickshop Boasting 4,500 pocket springs and luxurious layers of cashmere, wool, and cotton...
  • Sienna Comfort mattress, white quilted top with corner blue tag
    Loren Williams Sienna Comfort Mattress
    On sale from $1,799.00
    Add to Cart
    Quickshop Achieve a fantastic night’s sleep in any position with this luxurious mattress....
  • Superior mattress with quilted white top and black edge border, thick profile
    Loren Williams Harriet Superior Mattress
    On sale from $1,049.00
    Add to Cart
    Quickshop Enjoy excellent lumbar support with 1,600 zoned pocket springs, allowing you to...
  • Luxe mattress with white quilted surface and black side frame, square corners
    Loren Williams Harriet Luxe Mattress
    On sale from $899.00
    Add to Cart
    Quickshop Offering fantastic support that alleviates pressure and pain, this mattress boasts 1,400...
  • Harriet comfort mattress with dark ribbed side and white quilted top
    Loren Williams Harriet Comfort Mattress
    On sale from $799.00
    Add to Cart
    Quickshop Relieve pain and pressure with this refreshing Loren Williams Harriet Comfort mattress,...
  • Light blue memory foam mattress topper with zigzag quilted surface on a bed
    ONLINE EXCLUSIVE
    Giselle Memory Foam Mattress Topper 7-Zone 8cm King Single
    Regular price $135.99 $147.99 Sale price
    Add to Cart
    Quickshop Indulge in ultimate comfort with the Giselle Bedding Memory Foam Mattress Topper,...
  • Gray trifold folding mattress cushion with geometric jacquard cover, laid flat
    ONLINE EXCLUSIVE
    Giselle Foldable Mattress Folding Sofa Bed Trifold Memory Foam Camping Cushion Mat
    Regular price $111.99 $249.99 Sale price
    Add to Cart
    Quickshop Upgrade your space with this foldable mattress from Giselle Bedding. Featuring comfort-soft...
  • Foldable four-panel mattress in light gray fabric, shown flat for sleeping.
    ONLINE EXCLUSIVE
    Giselle Foldable Mattress Folding Sofa Bed 4-fold Sleeping Camping Cushion Mat
    Regular price $98.99 $149.99 Sale price
    Add to Cart
    Quickshop Giselle Bedding's foldable mattress features a 4-fold design with a built-in pillow...
  • Memory foam mattress topper with white egg-crate texture on bed base
    ONLINE EXCLUSIVE
    Giselle Bedding Memory Foam Mattress Topper Egg Crate 5cm Queen
    Regular price $105.99
    Add to Cart
    Quickshop Add an extra layer of comfort to your mattress with our premium...
  • Blue memory foam mattress topper with textured wave surface and low-profile base edge
    ONLINE EXCLUSIVE
    Giselle Bedding Memory Foam Mattress Topper 7-Zone 8cm Single
    Regular price $103.99 $117.99 Sale price
    Add to Cart
    Quickshop Experience enhanced comfort with a Giselle Bedding Memory Foam Mattress Topper. It...
  • Light blue memory foam mattress topper with wave and raised bubble pattern, single size
    ONLINE EXCLUSIVE
    Giselle Bedding Memory Foam Mattress Topper 7-Zone 5cm Single
    Regular price $79.99 $86.99 Sale price
    Add to Cart
    Quickshop Experience enhanced comfort with a Giselle Bedding Memory Foam Mattress Topper. It...
  • Grey folding foam mattress with four hinged segments, laid flat on the floor
    ONLINE EXCLUSIVE
    Giselle Bedding Foldable Mattress Folding Foam Single Grey
    Regular price $114.99 $141.99 Sale price
    Add to Cart
    Quickshop A couch by day, a bed by night. Convertible in use, our...
  • Blue foldable single foam mattress with three folding sections, lying flat on the floor
    ONLINE EXCLUSIVE
    Giselle Bedding Foldable Mattress Folding Foam Single Blue
    Regular price $115.99 $159.99 Sale price
    Add to Cart
    Quickshop Our Giselle Bedding Folding Foam Mattress is a wonderful solution for soothing...
  • Foldable single mattress with bamboo-pattern top and dark side edges
    ONLINE EXCLUSIVE
    Giselle Bedding Foldable Mattress Folding Foam Single Bamboo
    Regular price $111.99 $131.99 Sale price
    Add to Cart
    Quickshop Our Giselle Bedding Folding Foam Mattress is just wonderful for a soothing...
  • Light grey foldable foam mattress mat, folded into three sections
    ONLINE EXCLUSIVE
    Giselle Bedding Foldable Mattress Folding Foam Bed Mat Light Grey
    Regular price $108.99 $114.99 Sale price
    Add to Cart
    Quickshop Our Giselle Bedding Folding Foam Mattress is just wonderful for a soothing...
  • 3-fold portable fleece mattress with three beige sections, rectangular foldable design
    ONLINE EXCLUSIVE
    Giselle Bedding Foldable Mattress Fleece Portable 3-fold Folding Foam Mattresses
    Regular price $115.99 $149.99 Sale price
    Add to Cart
    Quickshop Relax or rest with this 3-fold foam mattress by Giselle Bedding. It...
  • Memory foam mattress topper with zigzag texture in light blue
    ONLINE EXCLUSIVE
    Giselle Bedding 5cm Memory Foam Mattress Topper 7-Zone King Single
    Regular price $98.99 $141.99 Sale price
    Add to Cart
    Quickshop Experience enhanced comfort with a Giselle Bedding Memory Foam Mattress Topper. It...
  • Firm mattress on gray bed frame with two navy logo pillows
    Entice Firm Mattress - SIMPLY THE BEST
    On sale from $1,099.00
    Add to Cart
    Quickshop Discover the Entice Firm Mattress by SIMPLY THE BEST, crafted for those...
  • Desire plush mattress set with dark gray tufted headboard, patterned top, black pillows
    Desire Plush Mattress Simply The Best
    On sale from $1,699.00
    Add to Cart
    Quickshop Indulge in ultimate comfort with the Desire Plush Mattress by Simply The...

Buy an Affordable King Single Mattress in Perth

If you're searching for a quality king single mattress in Perth or across Western Australia, Bedworld offers excellent value without compromising comfort. Whether you prefer firm support, plush cushioning, or a balanced medium feel, our collection is designed to suit every sleeper and budget.

Enjoy flexible payment options and convenient online ordering, so you can upgrade your bedroom without paying everything upfront.

Shop King Single Mattresses Online or In-Store

Browse our wide range of king single mattresses online or visit a Bedworld store to experience the comfort in person. Our team is here to help you find the perfect mattress, bed frame, and base combination for a restful night’s sleep.

Upgrade today and enjoy the extra space and comfort a king single mattress provides.

FAQs: King Single Mattresses

In Australia, a king single mattress measures approximately 107 cm × 203 cm  and 42″ × 80″ in inches. It offers more length and width in comparison to a single mattress.

A king single is both wider and longer than a standard single. It is 15 cm wider and 15 cm longer which provides more room, especially for taller sleepers.

Yes, a King single mattress fits in small bedrooms. However, it takes more space than a single mattress.  It provides extra comfort without needing as much room as a double or queen.

King single mattresses are available in a variety of types ranging from innerspring, pocket spring, memory foam, hybrid  which is combination of foam and spring, latex, and other adjustable-base compatible versions. You can choose a mattress based on comfort preferences , performance, budget, and body support needs.

The lifespan of a King-single mattress depends on quality, materials, usage, and care. A good-quality king single mattress should last around 7-10 years. To extend lifespan, you can rotate the mattress and protect it with a mattress protector.

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