King Single Mattress

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Free Old Mattress
Removal & Disposal

Sleepy’s 60-Night
Comfort Exchange Guarantee

Product Review award winner

Rated #1 by Product Review
4 Years Running

4.9
GoogleREVIEWS

Based on 8k reviews

Australian Chiropractors
Association Approved

Discover the Power of a Better Night's Sleep

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.

Frequently Asked Questions

How Long Until My Order Is Delivered?
Our mattresses are Australian made and when you order online, chances are they are yet to be made by our Australian manufacturers! Due to the nature of bulky goods and potential construction time, delivery times will vary depending on the product and availability. If you’re purchasing in-store, we will advise you of an estimated delivery time, at the time of purchase. If you’re purchasing online, a local Sleepy’s consultant will be in touch to confirm a delivery date. Mattress and standard bases could take up to 7-10 business days. Customised drawer bases and bedheads between 15 and 21 business days.
What Happens Once I Place an Order?
Online – once your order has been received and payment confirmed, one of our consultants will make contact with you. This may be in the form of email or telephone. Please check your “junk” mail after your order has been placed just in case our email ends up there by mistake! The consultant in store will let you know they have received your order and will make arrangements to have your new mattress made for you. They will also provide you with regular updates as required to advise delivery details and time lines. This could be through email, SMS or telephone, you get to select which method suits your lifestyle. In Store – our consultants will provide you with information on delivery time lines at the time of your purchase. If they need to order the product from our suppliers they can provide you with regular updates as required. This could be through email, SMS or telephone, the choice is yours, just let your consultant know at the time of purchase.
Is Old Mattress Removal Available?
Yes, Sleepy’s offer free mattress removal at no extra cost. When we deliver your new mattress, for both in store and online mattress purchases, our team will remove your old mattress at no charge! We do reserve the right in some cases, where the health and hygiene of our staff or contractors may be at risk, to negotiate an alternate arrangement for disposing of your mattress. During COVID-19, changes may apply to delivery schedules and free old mattress removals at this time. If you are purchasing online, we will confirm your delivery before processing your order. If you are making your purchase in one of our Sleepy’s showrooms, our teams in store will advise you of the current delivery protocols. Sleepy’s use independent contractors for delivery services to our customers and during this time we want to support these small business owners and our customers to ensure safety for all. Please note, bases and other bedroom furniture are not part of our Free Old Matt Removal offer. This service is available in some stores at an additional charge. Please contact your closest Sleepy’s store for more information.
Will I Receive Advance Notice Before Delivery?
Yes, you will be contacted prior to delivery via SMS, email or phone call.
What Do I Need to Know Prior to My Order Being Delivered?
If Sleepy’s are delivering a new mattress (and/or base) to your home, we will contact you beforehand to provide guidelines to help arrange a smooth transition. As these products are large and heavy, it is recommended fragile, valuable and cherished possessions are tucked away and a clear pathway to the room be created.
Can I Change or Cancel My Order After I Have Placed it Online or In-Store?
Cancellation of orders will attract an administration fee equal to 20% of the total value of goods if your order has been placed with the manufacturer. You are not entitled to a refund if you simply change your mind. Order changes can be managed through the store. We always want to provide you with the most suitable outcome possible and will work with you to achieve this. Sleepy’s offer 60 Night Comfort Exchange on the occasion that your mattress isn’t quite right.
Frequently Asked Questions

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