4.8
Rated 4.8 out of 5 stars
4.8 Stars (803 Reviews)

Koala SE Mattress

Koala SE Mattress Koala SE Mattress
  • Mattress with grey layers, promoting essential ergonomic support. Highlights three zones for shoulders, hips, and legs to fit body curves.
  • Koala SE Mattress - King Single
  • 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.
  • Teen sitting on a wooden bed playing guitar. Bedroom includes green chair, blue side table, lamp, skateboard, cactus, and abstract wall art.
  • Light grey mattress with a green label on the side featuring a subtle stripe pattern. Perfect for bedroom furniture styling.
  • Simple single mattress with a light grey cover and white stitching. The edges are slightly rounded with a soft texture.
  • White mattress with a quilted top, striped sides, and dark trim on the edges. Plain background. Perfect for bedding, bedroom decor.
  • Mattress with white striped top and light grey sides, featuring a small green tag on the left corner, viewed from the front.
Koala SE Mattress Koala SE Mattress
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Standard comfort
4.8
Rated 4.8 out of 5 stars
4.8 Stars (803 Reviews)
$622
$750 $622
Save $128
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Size: King Single
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  • 120 day trial
  • Fast & free delivery
  • 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

Single beige mattress with thin green trim, measuring 188 cm in length and 92 cm in width.

Height: 23 cm

Width: 107 cm

Length: 203 cm

Weight: 19.80 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 (King Single) Arrives to You

Dimensions: W115 × D40 × H40cm
Boxed weight: 22.55kg

120 day trial

1. Give our products a 120 day 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 (803)

    Make it a set

    Four reasons to love the Koala SE Mattress

    • Kloudcell® comfort & support

      Our responsive foam cushions pressure points like shoulders and hips while staying supportive. Built for lasting comfort.

    • Plush topper & breathable cover

      A fixed, plush quilted topper for a cloud-like feel. The TENCEL™ fibre cover helps you sleep cooler and drier.

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

      Targeted support, less movement

      A durable core with 3 targeted zones provides enhanced pressure relief. This also ensures zero disturbance from a restless partner.

    • Green delivery van with "koala" branding parked in a driveway. A person unloads a large brown box from the van. Lush greenery surrounds the scene.

      Best value, delivered fast

      CHOICE® Recommended for great value. Includes free same-day metro delivery and a risk-free 120 day trial.

    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, proven to last

    Experience an immediate, cloud-like feel from the fixed, plush quilted topper. This is comfort designed for the long term. The Koala SE Mattress is CHOICE® Recommended for quality and boasts an outstanding 95% comfort retention score after eight years of simulated use, ensuring the plush comfort you feel today lasts for years to come.

    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.

    The comfort behind every Koala mattress – Kloudcell®

    Kloudcell® is our signature comfort foam. It’s designed to balance soft cushioning with steady support, help reduce heat build-up, and respond easily as you move through the night.

    Soft and supportive

    So you feel cushioned, not stuck

    Kloudcell® foam gently cushions pressure points while staying supportive under broader areas like your back and hips, helping keep your body comfortable and aligned across different sleep positions. Its structure is designed to ease pressure at the shoulders, hips and knees without the sag or sink often associated with traditional memory foam.

    Breathable

    So heat doesn’t build up

    Kloudcell® allows air to flow through the mattress thanks to its open foam cell structure, helping excess heat escape so you sleep cooler and stay on top of the bed, not stuck in it like traditional memory foam.

    It’s tested to be up to 40% cooler to the touch and 30× more breathable than the worst-performing competitor foams.

    Instantly responsive

    So movement doesn’t interrupt your sleep

    Unlike slow-response memory foam, this fast-responding foam reacts instantly when you move, making it easier to change positions with less disturbance. It absorbs motion at the comfort layer, forming the foundation of our Zero Disturbance® motion reduction.

    Built to last

    So comfort holds up over time

    Kloudcell® is made with durable, high-density foam designed to hold its shape and comfort over years of use, delivering consistent comfort night after night.

    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 803 reviews
    Total 5 star reviews: 670 Total 4 star reviews: 97 Total 3 star reviews: 24 Total 2 star reviews: 10 Total 1 star reviews: 2
    96%would recommend this product
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    803 reviews
    • Madeline
      I recommend this product
      Rated 5 out of 5 stars
      4 minutes ago
      5 Stars

      Got as a floor bed for transition from cot for our baby, so far so good, firm but comfy!

      Was this helpful?
    • Ren K.
      Verified Buyer
      I recommend this product
      Sleep Position Combination of above
      Sleep Issues Neck/back pain
      Mattress Firmness Medium
      Rated 5 out of 5 stars
      9 hours ago
      The best

      I’ve had a double of koala, and I loved it soooo much. I’ve recently moved into a new place, and it came with a really bad single bed. I have been soooooo glad for the purchase of a new mattress. It’s sooo comfy and I am sleeping so much better!

      Was this helpful?
    • Lachlan M.
      Verified Buyer
      I recommend this product
      Rated 5 out of 5 stars
      19 hours ago
      Comfy

      This is very comfy.

      Was this helpful?
    • Jake H.
      Verified Buyer
      I recommend this product
      Sleep Position Side
      Sleep Issues Neck/back pain
      Mattress Firmness Medium firm
      Rated 5 out of 5 stars
      3 days ago
      Great mattress

      It’s very comfortable. I’m a side sleeper and works perfect for me.

      Was this helpful?
    • Nicole S.
      Verified Buyer
      I recommend this product
      Sleep Position Combination of above
      Mattress Firmness Medium
      Rated 5 out of 5 stars
      5 days ago
      Very happy customer

      We bought a mattress and protector, and the mattress arrived so quickly and was packaged beautifully. My daughter was so excited about the little Koala toy—it made her day! The protector wasn’t available straight away, but Koala kept us updated the whole time, and it’s finally arrived (such a relief!). We’re really happy with everything and will absolutely be back again.

      Was this helpful?
    Show More

    FAQs about the Koala SE Mattress

    What is Kloudcell®?

    Kloudcell® is our responsive foam that delivers cushioned comfort with steady support. It's designed to relieve pressure points where you need it most.

    Why is the cover breathable?

    Our cover uses TENCEL™ fibres to manage moisture, helping you sleep cooler and drier. It's soft, breathable, and made from sustainably sourced wood.

    What does 'SE' stand for?

    SE stands for "Standard Edition." It means you get essential comfort, trusted support, and CHOICE® Recommended value without the additional features of our more advanced mattresses.

    Who is the Koala SE Mattress best for?

    Value-focused shoppers: Anyone seeking proven quality and comfort that won't break the bank.

    Simple setups: Sleepers who want a reliable, no-fuss bed with a fixed plush topper.

    Guest or kids' rooms: A low-maintenance, durable mattress for secondary or rental properties.

    Core support needs: Anyone needing essential, targeted back support from a stable 3-zone core.

    Why Koala?

    For a cosy home, and a healthy planet.

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

      Help us save the koala from extinction

      Your order helps us support koala and wildlife conservation efforts across Australia. To date, we have donated over $4.9 million towards these efforts.

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

      Giving back to people and planet

      To date we have donated over $23 million in cash and product donations, which includes $10 million as part of our 1% for the Planet commitment

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

      We’re a Certified B Corporation

      We meet the highest standards for social and environmental impact so you can feel good choosing us.
    • A black envelope icon with a simple, minimalist design.

      Send an enquiry

      Contact us

    • Black phone icon in the shape of a handset, facing upward and to the left.

      Call us

      Mon-Fri 9am-6pm
      Sat-Sun 9am-5pm

      1800 KSLEEP (1800 575 337)

      Call now

    • I'm unable to view images, but if you're referring to a furniture setup, here's an example of how you can write an alt text: "Light grey couch with wooden legs, a matching armchair, and a round coffee table on a beige rug." If you provide details, I can help craft a specific description!

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    Koala SE Mattress King Single

    King Single
    $622
    $750 $622