A cheap mattress is only a bargain if it lasts and if you can send it back. Cost has to come out somewhere — this page is about where it usually comes out, and which of those cuts you can live with.
Where the money gets taken out, in order
Manufacturers reduce cost in a fairly predictable sequence. Knowing the order tells you what to check.
- Foam density. The first and most consequential cut, and the least visible. Lower-density foam feels the same in the first month and compresses much faster after that. Density is rarely published — when a brand does publish it, that is a signal in itself.
- Coil count and wire gauge. Fewer springs, or thinner wire in the same count.
- Edge support. The perimeter reinforcement is easy to leave out and you will only notice it when you sit on the side.
- The cover. Thinner fabric, less quilting, no natural fibre.
- Warranty and trial length. Costs nothing to print, costs real money to honour.
What not to compromise on
- A usable trial. At the budget end the chance of the mattress not suiting you is higher, not lower. Check the break-in period, who pays return freight, and whether your postcode is covered.
- A warranty with legible terms. Specifically the sagging depth it covers and whether it is pro-rata. A vague warranty is worth roughly nothing.
- A support core that matches your weight. Softness is cheap; support is not. This is the wrong place to save.
What the mattresses on this list have in common
The reason these four are here rather than the four cheapest mattresses on the internet is that none of them makes the cut that matters most: all four carry a home trial of at least 120 nights and a warranty of at least ten years, and all four publish free delivery. The starting price across the group runs from $388.50 to $795, and the lowest of those is the cheapest starting price of any mattress on this site.
Return freight is the row to read carefully even here. Some of the free-return offers on this list are qualified by metro-only wording, and one of the four does not publish a return-freight term at all. Confirm yours before ordering rather than after — a budget mattress with a couple of hundred dollars of return freight attached is not a budget mattress.
That combination — a low price and a trial you can actually use — is the whole proposition of the budget end of this market. A mattress at half the price with no trial and a warranty you cannot read is not cheaper; it is a bet.
Two of the four also publish foam certifications, which is worth a paragraph of its own because the badges are widely misread.
What CertiPUR-US and OEKO-TEX actually tell you
Both are content certifications. They test what is in the material, not how well it performs or how long it lasts.
CertiPUR-US applies to flexible polyurethane foam and certifies that the foam is made without certain flame retardants, heavy metals and formaldehyde, and that it meets a low-emissions limit for volatile organic compounds. That is a genuine floor, and it is relevant to the smell in the first week and to what is in the room long-term.
OEKO-TEX is a textile certification, usually applied to the cover fabric, testing for harmful substances in the finished textile.
What neither one says is that the foam is dense, that the mattress will hold its shape, or that it is comfortable. A certified mattress can still soften in two years. Read the certifications as "nothing objectionable in the materials" and keep looking for the durability signals separately.
Your rights do not scale with the price
Under Australian Consumer Law a mattress must be of acceptable quality and must last a reasonable time given its price and how it was described. Those guarantees apply to a $600 mattress as much as a $6,000 one, they sit on top of whatever the manufacturer's warranty says, and they cannot be excluded by the terms of sale.
What "a reasonable time" means does scale with price — nobody expects a budget mattress to last twenty years. But it is not zero, and a mattress that sags out of usefulness inside two years is arguably not durable regardless of what its warranty covers.
This is a description of how the framework is set up rather than legal advice; the ACCC publishes the authoritative guidance on consumer guarantees.
Be careful with the discount
Mattresses are discounted more or less permanently in Australia — end of financial year, Black Friday, Boxing Day, and most of the weeks in between. Two things follow from that.
First, the "sale" price is usually close to the real price, so there is rarely a reason to rush. Second, treat a struck-through RRP with suspicion: a discount is only genuine if the higher price was actually charged for a reasonable period beforehand, and the ACCC has taken action against retailers over exactly this. Compare against what the mattress sells for elsewhere, not against the number the seller has crossed out.
The advertised price is almost never your price
Every "from" price in this category is the smallest size the brand makes. Most buyers want a Queen, and the step up is both larger and less predictable than people expect — across the mattresses on this site it adds anywhere between 11% and 65% to the advertised figure.
The practical consequence is that a price-ordered list at Single can be in a completely different order at Queen. Two mattresses advertised $50 apart can be $400 apart in the size you are actually buying. Pick your size first, then read the prices in that size, then compare.
Two more things get added after the headline number. Delivery is free in metro areas far more often than it is free everywhere, and a regional surcharge in this category can be a meaningful fraction of a budget mattress. And if the warranty requires a base with particular slat spacing or a centre rail, the base is part of the price whether or not the checkout says so.
Work out cost per year, not sticker price
This is the calculation that makes the category make sense, and it is simple enough to do in your head at the checkout.
Take the price you will actually pay in the size you want, and divide it by the number of years you realistically expect to keep it. A $600 mattress that you replace after three years is $200 a year. A $1,200 mattress that lasts eight is $150 a year — cheaper, despite costing twice as much on the day.
The number that makes this hard is the second one, because nobody publishes expected life. Two reasonable proxies: the warranty term the manufacturer is willing to underwrite, and the sagging depth at which they will honour it. A brand offering ten years at a shallow threshold is making a more expensive promise than one offering fifteen at a deep one.
The calculation cuts both ways, and it is worth saying so. If your honest answer is "I am moving in two years and will not take the mattress with me", the cheap mattress wins outright and no durability argument changes that.
Where a low price is genuinely fine
- Guest rooms and occasional-use beds. Durability under nightly load stops being the deciding factor.
- Children's beds that will be replaced as they grow anyway.
- A bridge purchase while you save for the bed you actually want.
- Rentals and share houses where the mattress may not survive the next move regardless of how well it is built.
For a bed you will sleep on every night for years, work out the cost per year rather than the sticker price. A $900 mattress that lasts three years is more expensive than a $2,000 mattress that lasts ten.
Common questions
What is the minimum I should spend on a mattress in Australia?
There is no threshold below which every mattress is bad. What there is, is a set of features that disappear at the very bottom of the market: a usable home trial, free return freight, a warranty with a stated sagging threshold, and published construction detail. If a mattress has all four, its price is not the risk. If it has none of them, a low price is not the reason to worry.
Are cheap mattresses less safe?
Australian mattresses sold new have to meet flammability and labelling requirements regardless of price. Foam and textile certifications go further than the legal floor and are more commonly published at the mid-range than the very bottom, which is a reason to prefer a certified budget mattress over an uncertified one at the same price.
Is a firm cheap mattress better than a soft cheap one?
Not inherently, and the question hides the real issue. At this price the risk is a weak support core rather than a wrong surface feel, and a firm surface over a weak core still sags under the hips. Judge the core, then the surface.
Should I buy a topper instead of a new mattress?
If the mattress is structurally fine and just too firm at the surface, yes — it is much cheaper and it works. If there is a visible hollow in the mattress with nothing on it, no topper will fix that, and buying one is money spent twice.
