King Single Mattress

King Single Mattress
  • ACA Chiro Classic Limited Edition

    ACA Chiro Classic Limited Edition

    ACA Chiro Classic Limited Edition

    From
    $1,199
    $1,199

    Each layer in the ACA Chiro Classic has been carefully designed to help you achieve an amazing night’s sleep. Tested and endorsed by the Australian Chiropractors Association (ACA), this mattress will help relax your muscles and supportyour sleepin...

    SIZES AVAILABLE
  • ACA Chiro Adjustable Mattress Limited Edition

    ACA Chiro Adjustable Mattress Limited Edition

    ACA Chiro Adjustable Mattress Limited Edition

    From
    $1,999
    $1,999

    Tested and endorsed by the Australian Chiropractors Association (ACA), each layer in the ACA Chiro Adjustable mattress collection, has been carefully designed to help you achieve an amazing night’s sleep. You’ll be supported by the 5 zoned Active ...

    SIZES AVAILABLE
  • Stay Over Trundle Set

    Stay Over Trundle Set

    Stay Over Trundle Set

    From
    $1,999
    $1,999

    If you have ever been caught out with surprise overnight guests, our Stay Over Trundle may be the answer for you! No need to find pumps or pull out your vacuum cleaner to inflate a mattress, instead, you can Double your sleeping options by sliding...

    SIZES AVAILABLE
  • Flinders

    Flinders

    Flinders

    From
    $1,599
    $1,599

    A carefully curated sleep system that utilises the benefits of nature, you can relax on the Natures Touch Flinders collection. Experience a soft-to-touch wool blend pillow top sleep surface for cloud-like comfort. Designed to suit adjustable bases...

    SIZES AVAILABLE
  • Seoni

    Seoni

    Seoni

    From
    $1,199
    $1,199

    For a beautifully undisturbed night’s sleep, the Seoni collection encompasses a comfortable Pocket Spring technology for minimised partner disturbance. Climatex™ Quilt on the sleep surface creates breathability and minimised heat build-up, while t...

    SIZES AVAILABLE
  • Sports Performance Release

    Sports Performance Release

    Sports Performance Release

    From
    $1,999
    $1,999

    The Sports Performance Collection is available exclusively at Sleepy's and tested and endorsed by the Australian Chiropractors Association (ACA). The Sports Performance Release offers layers of high-quality Dunlop Foam treated with Ultra Fresh...

    SIZES AVAILABLE
  • Florentina

    Florentina

    sale

    Florentina

    From
    $1,399
    $1,399

    Discover Sleepy's Florentina Collection—a sleep solution combining Premium foams and support systems for rest at an Affordable price. Experience the flowering power of sleep! Each Florentina mattress has a 10-year warranty and can be paired wi...

    SIZES AVAILABLE
    sale
  • Sports Performance Resolve

    Sports Performance Resolve

    Sports Performance Resolve

    From
    $3,599
    $3,599

    The Sports Performance Resolve Collection is not limited to elite athletes; it is specifically designed to cater to anyone who experiences exhaustion at the end of their day and requires overnight rejuvenation waking ready to tackle the next day. ...

    SIZES AVAILABLE
  • River Element

    River Element

    River Element

    From
    $519
    $519

    The River Element Collection is an essential component of Sleepy’s introductory mattress range, meticulously designed to deliver comfort and value. Australian-made and enriched with Dunlop Foams treated with Ultra Fresh, this collection ensures a ...

    SIZES AVAILABLE
  • Bespoke Poppy Blue

    Bespoke Poppy Blue

    Bespoke Poppy Blue

    From
    $3,899
    $3,899

    Our Bespoke Poppy Blue has been made with high quality materials including damask fabrics on the top panel, cashmere fibre in the quilt to provide extra comfort and loft, copper infused memory Foam and KulKote layers allowing for the care culture ...

    SIZES AVAILABLE
  • Bespoke Orchid

    Bespoke Orchid

    Bespoke Orchid

    From
    $3,799
    $3,799

    The Bespoke Orchid Collection is a truly exceptional collection designed to provide a luxury sleeping experience, with function and aesthetic. Designed with Climatex Quilt, a sleep surface that incorporates Premium high-loft fibre between responsi...

    SIZES AVAILABLE
  • ecoBeach

    ecoBeach

    ecoBeach

    From
    $1,999
    $1,999

    Sleepy’s exclusive ecoBeach Collection is designed with the latest in eco-friendly materials to transmit a sense of calm. Encompassing the latest in natural materials, hemp fibres are utilised in the top panel with Climatex Quilt and wool undernea...

    SIZES AVAILABLE
  • ACA Valour

    ACA Valour

    ACA Valour

    From
    $3,999
    $3,999

    Indulge in the ultimate sleep experience with the ACA Valour Mattress, a creation of comfort and and proudly endorsed by the Australian Chiropractic Association, this mattress is designed to support you where you need it most. Sink into the layers...

    SIZES AVAILABLE
  • ACA Immerse

    ACA Immerse

    ACA Immerse

    From
    $2,999
    $2,999

    Sink into the dreamlike comfort of the ACA Immerse mattress, a Sleepy's exclusive mattress tested and endorsed by the Australian Chiropractors Association. Feel the gentle embrace of the Activesense 5-zone Pocket Spring system, which harmonise...

    SIZES AVAILABLE
  • Coast

    Coast

    Coast

    From
    $3,499
    $3,499

    Rediscover the joy of a great night's sleep with the Nature's Touch Coast Collection. This mattress blends the best of nature and innovation to provide you with nights of serene, restorative sleep. From the hypoallergenic natural latex to ...

    SIZES AVAILABLE
  • EKO

    EKO

    sale

    EKO

    From
    $4,999
    $4,999

    Delight in the exceptional comfort, support, and sustainability with Sleepy's exclusive Nature's Touch EKO range. This full Foam mattress is designed with health and wellness at its core, to cater to the modern sleeper's needs, incorpo...

    SIZES AVAILABLE
    sale
  • Nullarbor

    Nullarbor

    Nullarbor

    From
    $2,599
    $2,599

    Introducing the Nullarbor collection, a creation inspired by the tranquil beauty of the Nullarbor Plains. With its thoughtfully designed features and commitment to quality, this mattress offers exceptional comfort and support, ensuring a restful n...

    SIZES AVAILABLE
  • Cove

    Cove

    Cove

    From
    $849
    $849

    Sleep made simple. The Cove mattress offers the perfect mix of comfort and support to help you get the restful sleep you deserve. With three feel options—plush, medium, and firm—the Cove mattress is designed to suit your personal preferences and e...

    SIZES AVAILABLE
  • Zephyr

    Zephyr

    Zephyr

    From
    $1,299
    $1,299

    Experience restful sleep with the Zephyr mattress, designed to deliver balanced, full-body support night after night. Featuring a continuous coil spring unit, the Zephyr offers even weight distribution from head to toe. Its durable Miracoil Classi...

    SIZES AVAILABLE
  • ACA Muse

    ACA Muse

    ACA Muse

    From
    $1,599
    $1,599

    The ACA Muse collection, developed by SleepMaker and Sleepy’s in partnership with the Australian Chiropractors Association (ACA), is designed to prioritise postural alignment, muscle relaxation, and full-body support. With the innovative 5-zoned M...

    SIZES AVAILABLE
  • ACA Era

    ACA Era

    ACA Era

    From
    $2,699
    $2,699

    Enhance your sleep with the ACA Era mattress, designed to offer support where you need it most. The Miracoil Advance Spring System provides support to assist with alignment for your back and body. This mattress contains temperature regulating feat...

    SIZES AVAILABLE

King Single Mattresses

Bigger than a single, smaller than a double, and just right for teens, guest rooms or solo sleepers, a king single mattress is a modern-day crowd pleaser. With room to grow, roll and rise refreshed, each Sleepy’s king single mattress is made to give you the deep sleep tonight that powers your tomorrow. 

Discover the king single advantage.

Find Your Ideal King Single Mattress

Longer, roomier and ready for anything, the king single mattress is the savvy in-betweener that’s just right for growing bodies, teens who’ve outgrown their childhood beds, and solo sleepers in space-conscious homes.

We’ve spent decades fine-tuning the art of mattress matching for hot sleepers, full-on fidgeters, and deep dreamers alike. Whether you fancy some cloud-like luxury or firm support with a bit of give, we'll guide you to a king single mattress to suit your body and your bedtime quirks.

Take our Mattress Finder Quiz and let the matchmaking begin.

Shop by Comfort & Feel

Plush King Single Mattresses

Featuring a pillowtop layer that cushions and shapes to your body as you snuggle down, a plush king single mattress is for side sleepers and those who crave a cloud-like embrace.

Medium King Single Mattresses

If you’re a combination sleeper or have a couple of different sleep needs, you need the just-right support of the medium king single mattress. It provides responsive support and plush comfort layers for the best of both worlds.

Firm King Single Mattresses

A firm king single mattress delivers strong support with minimal sink. Great for back sleepers, tummy sleepers or anyone who needs extra support for the spine.

Shop by Brand

SleepMaker

SleepMaker has been the master of mattress making for over 85 years. Mixing cutting-edge support with cloud-like comfort, they’re the gold standard in Australian-made durability and design. Our Sleepy’s Chiro range is made in collaboration with our friends at SleepMaker, bringing you the only mattress range endorsed by the Australian Chiropractic Association.

Natures Touch

Natures Touch keeps things beautifully simple. They use organic latex, breathable natural fibres and all-Australian craftsmanship. A Natures Touch king single mattress is perfect for those who want eco-friendly, fuss-free comfort that feels good.

Mlily

Mlily are the magicians of memory foam with their premium mattress range designed to mould perfectly to your body, easing pressure where it counts. They also offer a hybrid range featuring both memory foam and coil support for the dream team of sleep science.

Why Choose Sleepy’s?

Sleepy’s is on a mission to help Aussies wake up feeling more yes i can and less don’t talk to me. If you sleep hot, roll recklessly or wake up wonky, our sleep experts are trained to match you with your life-changing mattress.

We’re also the proud home of the only Chiro mattress range with the tick of approval from the Australian Chiropractic Association. That means proper posture-loving support. And when it’s time to buy a king single mattress and wave goodbye to your old one, we’ll take it away for you and give you our 60 Night Comfort Exchange Guarantee to make sure your new one is just right.

Frequently Asked Questions

What are the dimensions of a king single mattress in Australia?

A king single mattress measures 107cm wide x 203cm long.

Is a king single mattress right for teenagers or adults?

Yes, in fact, a king single mattress is ideal for teenagers, single adults or anyone working with a smaller space, providing a roomy space without taking up too much floor space.

How do I buy a king single mattress online from Sleepy’s?

It’s super easy to buy a king single mattress online. Seeing as you’re already here (hi!), navigate yourself to your ideal king single mattress, select the style and feel you want, filter to king single size, then add to cart! After you check out, our sensational sleep squad will be in touch to arrange delivery.

What’s the difference between a single and a king single mattress?

A king single mattress is both wider and longer than a standard single mattress. It’s a brilliant size for kids, teens and adults who need more space to dream than a single provides.

Are king single mattresses included in sales or promotions?

They certainly can be! Sign up for our mailing list to get tip-offs for any king single mattress sale or promotion.