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Art & Science Balmoral MattressVarious comforts availableIn StockFrom $719 - $839 Was $1,799 - $2,099 -
New
King Koil Manhattan MattressVarious comforts availableMade for you preorderFrom $1,469 - $1,679 Was $2,099 - $2,399 -
AH Beard Domino Broadway MattressVarious comforts availableMade for you preorderFrom $1,469 Was $2,099 -
New
Osborn Hotel Luxury Collection MattressVarious sizes availableNot available In Your StateFrom $3,009 - $4,269 Was $4,299 - $6,099 -
Dreamsuite Flex Charcoal Bamboo Memory Foam MattressVarious sizes availableIn StockFrom $499 - $699 Was $999 - $1,399 -
Dreamsuite Flex Cool Gel Memory Foam MattressVarious sizes availableIn StockFrom $349 - $549 Was $699 - $1,099 -
Sale
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Advanced Cooling
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Advanced Cooling
Dreamsuite Aero Mattress King SingleVarious comforts availablePre Order AvailableFrom $479 Was $1,199 -
Advanced Cooling
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Advanced Cooling
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Advanced Cooling
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Advanced Support
Art & Science Highgrove Mattress SingleVarious comforts availableMade for you preorderFrom $1,199 - $1,479 Was $2,999 - $3,699 -
Advanced Support
Art & Science Highgrove Mattress King SingleVarious comforts availableMade for you preorderFrom $1,239 - $1,519 Was $3,099 - $3,799
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Advanced Support
Art & Science Highgrove Mattress DoubleVarious comforts availableNot available In Your StateFrom $1,359 - $1,599 Was $3,399 - $3,999 -
Advanced Support
Art & Science Highgrove Mattress QueenVarious comforts availableIn StockFrom $1,439 - $1,679 Was $3,599 - $4,199
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Advanced Support
Art & Science Highgrove Mattress KingVarious comforts availableNot available In Your StateFrom $1,599 - $1,799 Was $3,999 - $4,499 -
Advanced Support
Art & Science Highgrove MattressVarious comforts availableIn StockFrom $1,439 - $1,679 Was $3,599 - $4,199 -
Advanced Cooling
MID YEAR MEGA SALE | 30-60% OFF STOREWIDE*
Buying guides
Explore ideas to make your home beautiful, comfortable, and truly yours.
Art & Science
Did you know that we spend around one third of our lives asleep? So it’s no wonder ...
Mattress Guide
Did you know that we spend around one third of our lives asleep? So it’s no wonder ...
Dreamsuite
Did you know that we spend around one third of our lives asleep? So it’s no wonder ...
Best Selling
Mattresses for Sale in Australia
Shop our full range of mattresses online and find the perfect fit for your bedroom. Whether you're after a budget-friendly mattress in a box or a premium hotel quality mattress, Sleeping Giant has options to suit every sleep style, body type, and budget — delivered across Australia.
Why Choose Sleeping Giant
A good night's sleep starts with the right foundation. Since we spend roughly a third of our lives in bed, investing in a quality mattress isn't a luxury — it's one of the best decisions you can make for your health and wellbeing.
At Sleeping Giant, we've helped thousands of Australians find their perfect mattress. Our range is carefully selected to cover every comfort preference, from plush pillow-top softness through to firm orthopaedic support. Whether you're shopping for yourself, your partner or the kids, you'll find the right mattress for sale in our collection.
What sets us apart:
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Multiple mattress types – including spring, foam, cooling, mattress in a box, Australian made, and adjustable
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Standard sizes available – Single, King Single, Double, Queen, and King
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Trusted brands – including Art & Science, Dreamsuite, Osborn, and AH Beard &King Koil
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Flexible payment options – buy now, pay later available.
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Delivery across Australia – including metro and regional areas
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Click and Collect - for added convenience
Shop Mattresses by Type
Choosing the right mattress type makes a significant difference to how well you sleep. Here's a quick guide to what mattresses we sell at Sleeping Giant:
Individual springs respond independently to movement, reducing partner disturbance and providing targeted support across your body. Spring mattresses offer a responsive, breathable feel and are a popular choice for couples and hot sleepers alike.
Foam mattresses contour to the shape of your body for deep pressure relief and spinal alignment. Ideal for side sleepers or anyone who wakes up with aches and pains, foam provides a cradling feel that reduces pressure points throughout the night.
Our Dreamsuite range ships compressed and rolled for easy delivery — perfect for apartments, inner-city homes, or anyone who wants a hassle-free setup. Simply unbox, unroll, and wait for the mattress to fully expand before sleeping on it.
Designed with breathable materials and temperature-regulating technology to wick away heat throughout the night. A cooling mattress is an ideal choice for hot sleepers or those in warmer Australian climates.
Proudly stocking mattresses made right here in Australia. Australian made mattresses support local manufacturing while delivering quality you can trust.
Designed to work with adjustable bases, these mattresses let you customise your sleeping position for targeted comfort and support. An excellent option for those managing back pain, circulation issues, or simply wanting full control over their sleep setup.
Shop Mattresses by Size
Size matters when it comes to a good night's rest. Our mattresses are available in all standard Australian bed sizes:
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Single – ideal for kids' bedrooms or compact spaces
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King Single – a popular choice for growing teenagers
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Double – suits solo sleepers who want more room to move
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Queen – the most popular size for couples and master bedrooms
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King – maximum space for couples who value their sleeping room
Not sure which size is right for your room? Browse our bed size collection or pair your new mattress with one of our bed frames and bases for a complete bedroom setup.
What Kind of Mattress Is Best for Back Pain?
If you suffer from back pain, the right mattress can make a real difference. A medium-firm mattress is generally recommended by health professionals for optimal spinal alignment and pressure point relief — whether you sleep on your side, back, or stomach.
Look for a mattress that keeps your spine in a neutral position throughout the night. Our Mattress Buying Guide walks you through how to choose the best mattress for your sleep position and health needs.
Complement your mattress with a supportive bed base, and consider adding a mattress topper for an extra layer of customised comfort.
Mattresses on Sale Online & In-Store – Great Value, Quality Sleep
At Sleeping Giant, you don't have to spend a fortune to sleep well. We regularly offer mattresses on sale across all sizes and types, from affordable entry-level options through to premium models at discounted prices.
Shopping for a new mattress for sale? Browse our current deals and take advantage of seasonal promotions.
Find the Perfect Sleeping Giant Mattress Shop Near You
We make it easy to find the right mattress, whether you shop online or in-store.
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Visit Us In-Store
Try our range at a Sleeping Giant store and get help from our sleep experts. You’ll find us in:
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New South Wales (NSW)
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Queensland (QLD)
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Victoria (VIC)
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South Australia (SA)
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Shop Online
Order online for delivery across Australia, including metro and regional areas. Enter your postcode on any of our product pages to confirm availability.
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Click & Collect
Select Click & Collect at checkout and check online to see if your item is available for in-store and warehouse pickup.
Frequently Asked Questions
What is the best mattress to buy in Australia?
This depends on your sleep style, but we like to think that Sleeping Giant offers some of the best mattresses in Australia. Side sleepers often need plush beds for pressure relief, while back or stomach sleepers usually prefer a firmer feel for spinal support.
How do you choose the best mattress size for your space?
Queen is the most popular size for Australian couples. For a single adult, a Double or King Single gives plenty of room. Check our Bed Size Guide for room dimension recommendations.
Can I buy a mattress online in Australia?
Yes. Sleeping Giant offers online mattress shopping with delivery across Australia. Browse our full range, select your size and feel, and we'll take care of the rest.
Do you stock Australian made mattresses?
Yes. Browse our dedicated range of Australian made mattresses for locally crafted options from trusted brands.
What payment options are available?
We offer flexible payment options to make buying a new mattress more convenient. Check out our payment options here, including buy now, pay later.
What if I sleep hot?
Our range of cooling mattresses is designed specifically for warm sleepers, using breathable materials and temperature-regulating technology to keep you comfortable through the night.
Complete Your Bedroom
Your mattress is just the beginning. Explore our full range of bedroom furniture and home decor to create a complete sleep sanctuary:
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