Sleeping Giant

Apply the best Sleeping Giant promo code or card offer you qualify for, then go through ShopBack before you pay, where ShopBack Cashback works like a discount on the same order, only easier than a promo code. There is nothing to find or type, it does not use up your one Sleeping Giant promo code, and it still lowers the price when no code is running. Part of what you pay comes back as Cashback: check the rate shown on ShopBack's Sleeping Giant page before you buy.

Sleeping Giant is an Australian-owned, family-run specialist sleep retailer with more than 40 years of trading and showrooms in NSW, QLD, VIC, SA and WA, so pick your mattress, then check out through ShopBack before you pay, where ShopBack Cashback works like a discount, only easier than a promo code. The website at sleepinggiant.com.au sells mattresses by size and type, including spring, foam, mattress-in-a-box, cooling, Australian-made and adjustable, plus bed frames, bases, bedheads, bedsides, dressers, kids beds, pillows, protectors, quilts, rugs and lighting. House ranges are Art & Science and Dreamsuite alongside AH Beard, King Koil and Osborn. Click through from the ShopBack Sleeping Giant merchant page to earn cashback at the current published rate.

The 100-Night Sleep Promise lets you sleep on a new Dreamsuite or Art & Science mattress for up to 100 nights and exchange it if it is not right. To activate it you must buy a mattress protector in the same transaction, on the same receipt, and use it from the first night; the mattress must be undamaged and unsoiled. Electronic adjustable mattresses, furniture, homewares, linen, bases, bedheads, bedding, custom orders and floor stock are excluded. Contact customer service to arrange pickup. An exchange swaps one mattress for another and is not a refund.

Sleeping Giant runs a permanent Clearance section online, which on 4 October 2026 listed 129 marked-down homewares, plus a New Arrivals section as ranges change. For the rest of 2026 the Australian retail calendar gives you Black Friday on 27 November, Cyber Monday on 30 November and Boxing Day on 26 December, the big windows for mattress and bed frame discounts. The current Cashback is shown on the Sleeping Giant page on ShopBack before you buy a sale mattress.

Koala is an online-only Australian brand that sells its own mattresses in a box direct from its website. Sleeping Giant is a multi-brand retailer with physical showrooms, so you can lie on an Art & Science, Dreamsuite, AH Beard or King Koil mattress before buying, then order online. Choose Sleeping Giant to test comfort levels in person, compare several brands, or buy the bed frame and bedding in the same order; choose an online-only brand when a single boxed model suits you. Sleeping Giant orders earn ShopBack cashback at the current published rate. For a deeper look, see Koala vs Emma vs Eva vs Ecosa: Online Mattress Verdict AU 2026.

Both are Sleeping Giant house ranges covered by the 100-Night Sleep Promise. Art & Science is the broader spring-based collection, with Windsor, Balmoral, Kensington, Somerset, Highgrove and Ultra Luxe models, several offered in Extra Comfort pillowtop versions, and a buying guide that sorts them from Firm Support to Extra Comfort. Dreamsuite is the foam-led range: Flex Cool uses cool gel memory foam, Flex Charcoal uses charcoal bamboo memory foam and Aero is the balanced comfort model. Both ranges earn ShopBack cashback on the mattress price when ordered through the ShopBack Sleeping Giant page.

Sleeping Giant partners with Soft Landing, a national social enterprise that recycles up to 75 percent of mattress components such as foam, timber and metal and offers collection in NSW, WA, ACT and Victoria. Pricing varies by location, whether you drop off or book a collection, and how many pieces you have, so get a quote from Soft Landing directly rather than expecting it on your Sleeping Giant invoice. Plan the collection for the week your new mattress arrives so you are not storing two.

Cashback applies to orders placed online at sleepinggiant.com.au after you go through ShopBack. The practical route is to test mattresses in a showroom, note the exact model, size and comfort level, then go home, open Sleeping Giant from ShopBack before you pay and order online. Online payment accepts Visa, Mastercard, American Express and PayPal. A store-only service such as a custom order is arranged in store. Remember to add the mattress protector online too if you want the 100-Night Sleep Promise.

Go through ShopBack before you pay and the Cashback tracks to your ShopBack account. Open the Sleeping Giant page on ShopBack, continue to sleepinggiant.com.au and complete checkout. Cashback typically tracks within two days and confirms after about 95 days. The current Cashback is shown on the Sleeping Giant page on ShopBack.

A 100-Night Sleep Promise exchange swaps one mattress for another rather than refunding you, and the Cashback may be adjusted if the replacement price differs.

ShopBack's guide on Sleeping Giant covers choosing a mattress for good sleep: What's the Best Mattress to Buy in Australia in 2026?.