4.8
Rated 4.8 out of 5 stars
4.8 Stars (709 Reviews)

Koala SE Mattress

Koala SE Mattress

  • Stylish bedroom with light wood bed frame and mattress, pink and striped cushions, modern lamp, abstract wall art, and beige rug.
    Most affordable
  • Mattress with grey layers, promoting essential ergonomic support. Highlights three zones for shoulders, hips, and legs to fit body curves.
  • Koala SE Mattress - Double
  • Close-up of a mattress corner with a light grey quilted fabric and green brand label. Set on a wooden bed frame. White and green bedding visible.
  • Infographic of SE Mattress features: 5cm Kloudcell® comfort layer, breathable TENCEL® Lyocell cover, and 3-zone support core.
  • Exploded view of mattress layers, including TENCEL® cover, quilted topper, 5cm Kloudcell® layer, and 3-zone support core with Zero Disturbance® tech.
  • Woman sitting on wooden bed with grey mattress, yellow cushions, grey rug, and modern decor including a floor lamp and yellow chair. Bright room.
  • Light grey mattress with a green trim and label on the side. Striped top surface, minimalist design.
  • Light grey mattress with a rectangular shape and subtle green trim. White top with a quilted pattern. Ideal for bedroom comfort.
  • Simple beige mattress with a light grey, diamond-patterned top, viewed from the side against a white background.
  • Light grey mattress with white, striped top and green piping on edges, viewed from the front against a plain background.
  • Stylish bedroom with light wood bed frame and mattress, pink and striped cushions, modern lamp, abstract wall art, and beige rug.
  • Mattress with grey layers, promoting essential ergonomic support. Highlights three zones for shoulders, hips, and legs to fit body curves.
  • Double
  • Close-up of a mattress corner with a light grey quilted fabric and green brand label. Set on a wooden bed frame. White and green bedding visible.
  • Infographic of SE Mattress features: 5cm Kloudcell® comfort layer, breathable TENCEL® Lyocell cover, and 3-zone support core.
  • Exploded view of mattress layers, including TENCEL® cover, quilted topper, 5cm Kloudcell® layer, and 3-zone support core with Zero Disturbance® tech.
  • Woman sitting on wooden bed with grey mattress, yellow cushions, grey rug, and modern decor including a floor lamp and yellow chair. Bright room.
  • Light grey mattress with a green trim and label on the side. Striped top surface, minimalist design.
  • Light grey mattress with a rectangular shape and subtle green trim. White top with a quilted pattern. Ideal for bedroom comfort.
  • Simple beige mattress with a light grey, diamond-patterned top, viewed from the side against a white background.
  • Light grey mattress with white, striped top and green piping on edges, viewed from the front against a plain background.
  • Mattress with grey layers, promoting essential ergonomic support. Highlights three zones for shoulders, hips, and legs to fit body curves.
  • Koala SE Mattress - Double
  • Close-up of a mattress corner with a light grey quilted fabric and green brand label. Set on a wooden bed frame. White and green bedding visible.
  • Infographic of SE Mattress features: 5cm Kloudcell® comfort layer, breathable TENCEL® Lyocell cover, and 3-zone support core.
  • Exploded view of mattress layers, including TENCEL® cover, quilted topper, 5cm Kloudcell® layer, and 3-zone support core with Zero Disturbance® tech.
  • Woman sitting on wooden bed with grey mattress, yellow cushions, grey rug, and modern decor including a floor lamp and yellow chair. Bright room.
  • Light grey mattress with a green trim and label on the side. Striped top surface, minimalist design.
  • Light grey mattress with a rectangular shape and subtle green trim. White top with a quilted pattern. Ideal for bedroom comfort.
  • Simple beige mattress with a light grey, diamond-patterned top, viewed from the side against a white background.
  • Light grey mattress with white, striped top and green piping on edges, viewed from the front against a plain background.
4.8
Rated 4.8 out of 5 stars
4.8 Stars (709 Reviews)

Koala SE Mattress

Koala SE Mattress

Cloud-like comfort at a price that will have you smiling in your sleep.

$850
$850
Save $-850
Buy now pay later with
4 interest-free payments of $212.50
or
From $10/week
Size: Double
View full product details
120-night trial
120-night trial
Fast & free delivery
Fast & free delivery
10-year warranty
10-year warranty

Product description

Inspired by the Koala Mattress that started it all, the Koala SE gives you the sleep comfort essentials at a price that’ll have you smiling in your sleep. CHOICE® Recommended for quality slumber.

Dimensions

White rectangular mattress with green trim on a white background. Dimensions included are 188cm length and 92cm width.

Height: 23 cm

Width: 138 cm

Length: 188 cm

Weight: 23.90 kg

Materials, sustainability & care

Top Fabric

65% Polyester, 35% TENCEL™ Lyocell

Anti-Slip Base Fabric

100% Polyester with PVC dot

Other Fabrics

100% Polyester
Polyurethane foam

Country of Origin

Designed by Koala in Sydney, Manufactured in China.

Protect & Care

Regular care (weekly)

  • Spot clean only with warm water & mild detergent mix.
  • Do not soak filling.
  • Do not bleach.
  • Do not tumble dry.
  • Do not dry clean.
  • Do not iron.
  • To dry, lay flat away from direct sunlight.
  • Allow to thoroughly dry before re-use.
  • Vacuum mattress regularly using low suction.
  • Rotate mattress regularly.

Derived from sustainable wood sources, TENCEL™ Lyocell fibres are naturally soft to the touch and offer long-lasting comfort. Carbon-zero TENCEL™ Lyocell fibers are certified as carbon neutral products by a third party partner. These fibers help mitigate climate impact and protect the environment.

The foams used in our mattresses are CertiPUR-US® certified, meaning they are made without formaldehyde, ozone depleters, heavy metals and flame retardants (PBDEs, TDCPP or TCEP), and promote indoor air quality through low Volatile Organic Compounds (VOC). Learn more.

Delivery

We offer same day delivery on furniture and mattress orders in Sydney, Melbourne, Brisbane, Perth and Adelaide (for in-stock products). Delivery is FREE on mattresses and small items and our fast & flexible furniture delivery lets you choose a window that suits you.

Free metro delivery on any order with a mattress. Regional deliveries are charged per item.

Sydney, Melbourne and Brisbane Metro customers can also select premium delivery that includes assembly and rubbish removal on select items at an additional cost.

How the Koala SE Mattress (Double) Arrives to You

Dimensions: W146 × D39 × H39cm
Boxed weight: 27.05kg

120-night trial

1. Give our products a 120-night trial; if they don’t suit you, we'll give you a full refund of the purchase price.
2. Returns are easy. In major metro areas we'll even pick up big items like mattresses, bed bases and sofas for free.
3. For returns, simply disassemble furniture, fold mattresses, and keep original packaging for mattresses and upholstered items.

Learn more here.

Assembly instructions

Play assembly video

Reviews

4.8 (709)

    Make it a set

    Four reasons to love the Koala SE Mattress

    • Kloudcell® — soft & supportive

      After 8 years of perfecting Kloudcell® technology, you no longer have to choose between soft or supportive. Kloudcell® offers gentle support for your back and relieves pressure on shoulders, hips, knees, and feet—soft where you want it, supportive where you need it. Ideal for both back and side sleepers.

    • Soothing TENCEL™ Cover + Kloudcell®

      To fall asleep, our bodies need to cool down first. The Koala Mattress cover fabric is made with TENCEL™ Lyocell fibre that helps absorb and release moisture, making nodding off a breeze. The Kloudcell® open-cell structure provides the breathability your body needs to sleep cooler and drift off faster.

    • Woman in light clothing lying on a bed with a wooden frame and white mattress. Neutral-toned room with beige walls and white curtains.

      3 zone support

      Responsive support where you need it most. The durable 3-Zone Support design aligns to your shoulders, hips and feet for enhanced pressure relief, with Kloudcell® responding to movement to keep you continuously supported and undisturbed throughout the night.

    • Close-up texture of a white mattress cover with a quilted pattern and small perforations, showcasing soft, breathable fabric surface.

      Fixed quilted topper

      The New Koala SE Mattress features a fixed quilted topper that’s extra plush for that float-on-top feeling.

    Champagne sleep on a beer budget

    Tight budget? Tight schedule? The new Koala SE Mattress takes the stress out of both. Inspired by the award-winning Koala Mattress that started it all, it’s our comfy mattress at a comfy price, conveniently delivered. With our years of sleep expertise, we know how to make your next mattress one less thing to worry about.

    Woman asleep on a light grey mattress with wooden frame. Cushions and rug nearby. Modern decor with soft pastel accents.

    Cloud-like comfort

    The Koala SE Mattress features a fixed quilted topper that’s extra plush for that float-on-top feeling. CHOICE® Recommended for quality, the mattress boasts an outstanding comfort retention score of 95% after eight years of use.

    Got a move date? Need it fast?

    Free same day metro delivery is available with flexible delivery windows for the date and time that works for you.

    Modern wooden bed with light grey mattress and white pillows. Mint green sheet partially covers the bed. Vase with flowers on the bedside shelf.

    Build your bedroom for less

    Sort out your entire bedroom for a steal by bundling your Koala SE Mattress with our clever and compact Balmain Bed Base, bed linen set or some Koala pillows — all delivered fast and free.

    Customer reviews

    As we continuously improve our products, some of the reviews shown may reflect a previous generation of this product.

    4.8
    Rated 4.8 out of 5 stars
    Based on 709 reviews
    Total 5 star reviews: 593 Total 4 star reviews: 83 Total 3 star reviews: 21 Total 2 star reviews: 10 Total 1 star reviews: 2
    95%would recommend this product
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    709 reviews
    • Jarryd B.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      18 seconds ago
      Perfect comfort level

      Firm and comfortable, sits really well in the bed base, isn’t too heavy to move around and is incredibly comfortable.

      Was this helpful?
    • Aoi B.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      1 hour ago
      Solid Value, Better Sleep — My Experience with the Koala SE Mattress

      I recently upgraded to the Koala SE mattress and thought I’d share how it’s going so far. After sleeping on my old mattress for years and waking up stiff more often than not, I decided I needed something new — and this one ticks most of the boxes.

      What I like

      Delivery and setup were easy. It arrived quickly, unboxing was simple and the mattress was ready to use without much fuss.

      The comfort level is very good: it hits a nice “medium‑firm” sweet spot for me (I sleep mostly on my back with occasional side sleeps). I noticed my lower back isn’t complaining in the morning as much.

      Motion isolation is solid. My partner moves a lot in their sleep and I barely feel it — which is a big plus.

      Value for money: it doesn’t carry a luxury price tag but feels like a significant upgrade compared to my previous bed.

      Things to be aware of

      It is all‑foam, so if you’re someone who overheats easily, be aware this might run a bit warm compared to mattresses with coils or more advanced cooling.

      If you’re a super side‑sleeper or someone who wants very soft “sink‑in” comfort, this may feel slightly firmer than you expect.

      As with any mattress, give yourself some time to adjust — the first few nights felt slightly different until I got used to it.

      Overall

      If you’re looking for a reliable mattress that gives you better sleep without breaking the bank, the Koala SE is a smart pick. It delivers on comfort, support and usability. I’m glad I made the switch and would recommend it — especially…

      Was this helpful?
    • Paige
      I recommend this product
      Rated 5 out of 5 stars
      4 hours ago
      5 Stars

      We absolutely love this mattress!

      Was this helpful?
    • Grant S.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      2 days ago
      Great purchase

      Excellent purchase. Very happy.

      Was this helpful?
    • Kristelle G.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      2 days ago
      Super comfy

      Really comfortable, great value mattress for our daughter. Very happy with our purchase.

      Was this helpful?
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    Frequently asked questions

    What is Kloudcell?

    Kloudcell® is Koala's own proprietary high density polyurethane foam, which offers superior support, breathability, responsiveness and durability.

    What is fabric made from TENCEL™ Fibres?

    TENCEL™ is made from sustainably-sourced wood. The process used to create TENCEL™ fibres is eco-friendly, and has won awards for its low environmental impact. The result is a fabric that's more absorbent than cotton, softer than silk and cooler than linen.

    What does the SE in Koala SE Mattress stand for?

    This is our way of saying "sleep easy". This mattress has all the know-how of great sleep, at an affordable price - so you can sleep easy!

    View all FAQs

    Why Koala?

    We’re in the business of making things good

    • Dense green jungle with sunlight filtering through leaves, featuring a bold white "1% for the Planet" logo in the centre.

      We are a part of 1% for the Planet

      We put our money where our mouth is. We were the first Australian mattress and furniture retailer to join the 1% for the Planet movement. This means we donate one percent of sales annually for the good of our people and planet. In the last three years, we’ve given over $6.5M in cash and product to certified environmental partners.

    • Lush green forest with mist and a "Certified B Corporation" logo overlay in white at the centre.

      We're proudly a B Corp

      We're proud to be B Corp certified, which means we meet high standards of social and environmental impact, transparency and accountability. This certification reflects our commitment to using our business a force for good.

    • Koala sleeping on a tree with green leaves, overlayed with a "Keep It Wild Koala" emblem in white.

      Protecting our Aussie icon

      In partnership with WWF-Australia since 2017, we are working together to prevent the further decline of koala populations by restoring and reducing the loss of habitat and supporting key interventions required for sick and injured koalas.

    Koala SE Mattress Double

    Double
    $850
    $850

    Koala SE Mattress Double

    • Double
    $850
    $850