King Single Mattress

King Single Mattress

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.