Best Mattress Under $500 Australia
A good night's sleep shouldn't cost a fortune. In Australia, the sub-$500 mattress market has improved dramatically thanks to bed-in-a-box competition driving down prices. You can now get genuine memory foam, supportive spring, and even basic hybrid mattresses delivered to your door for under $500 AUD. Here are the best budget picks for 2026.
Buying Guide: What to Look For
- 1At this price, memory foam and pocket spring are your two main options — foam offers better pressure relief for side sleepers, while springs provide a firmer, bouncier feel for back sleepers.
- 2Thickness matters more in budget mattresses — aim for at least 20cm. Thinner models (15cm) tend to bottom out within 1-2 years, especially for sleepers over 80kg.
- 3Check the warranty carefully — reputable budget brands still offer 5-10 year warranties. Avoid any mattress with no warranty or less than 5 years, as it signals poor foam density.
- 4Budget mattresses benefit the most from a good base — a slatted bed frame with gaps no wider than 7cm prevents sagging. Placing a budget mattress directly on the floor traps moisture in Australia's humid climates.
- 5Off-gassing is stronger in budget foam mattresses. Unbox in a well-ventilated room and allow 24-48 hours before sleeping on it. The smell is harmless but can be unpleasant initially.
Top 5 Home & Living Picks for Australia
Zinus
Zinus Green Tea Memory Foam Mattress 25cm Queen
| Type | Memory foam |
| Thickness | 25 cm |
| Firmness | Medium-firm (6/10) |
| Certification | CertiPUR-US |
| Warranty | 10 years |
Pros
- Green tea and charcoal infused foam controls odour effectively
- 25cm thickness provides adequate depth for most body types
- CertiPUR-US certified — low chemical emissions
- Consistently strong reviews across thousands of Australian buyers
Cons
- Retains heat more than spring alternatives in warm climates
- Edge support is minimal — not ideal for sitting on the bed edge
Verdict
The most popular budget memory foam mattress in Australia — proven comfort with green tea freshness at an unbeatable price.
Giselle Bedding
Giselle Bedding 28cm Pocket Spring Mattress Queen
| Type | Pocket spring + foam top |
| Thickness | 28 cm |
| Firmness | Medium-firm (6.5/10) |
| Springs | Individually pocketed |
| Warranty | 10 years |
Pros
- Pocket springs provide firm support with minimal partner disturbance
- 28cm thick with comfort foam layer on top
- Zone support system with firmer centre section for lumbar support
- Very competitive price — often under $300 for queen
Cons
- Foam comfort layer is thinner than dedicated memory foam mattresses
- Heavier than all-foam options — awkward to move solo
Verdict
Strong pocket spring mattress with foam top layer — ideal for back sleepers who prefer a firmer, bouncier feel.
Giselle Bedding
Giselle Bedding Memory Foam Mattress 21cm Queen
| Type | Memory foam |
| Thickness | 21 cm |
| Firmness | Medium (5.5/10) |
| Cover | Removable knit |
| Warranty | 5 years |
Pros
- Extremely affordable — often the cheapest memory foam queen on Amazon.com.au
- 21cm profile still provides reasonable support for lighter sleepers
- Removable and washable knitted fabric cover
- Vacuum-packed for easy delivery and setup
Cons
- Thinner profile means heavier sleepers (80kg+) may feel the base
- Foam density is lower than premium budget options — expect 4-5 year lifespan
Verdict
Ultra-budget memory foam option that delivers decent comfort for guest rooms, kids' beds, or tight budgets.
Zinus
Zinus Cooling Gel Memory Foam Mattress 25cm Queen
| Type | Gel memory foam |
| Thickness | 25 cm |
| Firmness | Medium (5.5/10) |
| Certification | CertiPUR-US |
| Warranty | 10 years |
Pros
- Gel-infused memory foam sleeps noticeably cooler than standard foam
- Same proven Zinus comfort at a small price premium over the standard model
- CertiPUR-US certified with low off-gassing
- 25cm thickness supports a wide range of body weights
Cons
- Cooling effect is moderate — not a replacement for air conditioning in summer
- Still an all-foam mattress with typical edge support limitations
Verdict
Gel-infused version of the classic Zinus formula — better heat dissipation for warm Australian bedrooms.
Dreamz
Dreamz Pillow Top Spring Mattress 32cm Queen
| Type | Bonnell spring + pillow top |
| Thickness | 32 cm |
| Firmness | Medium (5/10) |
| Springs | Bonnell coil |
| Warranty | 5 years |
Pros
- 32cm thick with generous pillow top for a luxury surface feel
- Bonnell spring base provides strong overall support
- Knitted fabric cover adds softness at the surface
- Good value for a thick, plush mattress under $500
Cons
- Bonnell springs transfer more motion than pocket springs
- Pillow top cannot be flipped — rotate head-to-foot only
Verdict
Thick pillow-top spring mattress that feels more expensive than it is — great for sleepers who prefer a plush surface.
Editor's Note
Under $500, Giselle Bedding and Zinus dominate Amazon.com.au with consistently reviewed products. The key at this price is foam density — look for 30-40 kg/m³ in the support layer to avoid premature sagging. Queen sizes offer the best value per square metre in this bracket. Watch for Amazon mid-year sales in June and Prime Day deals — budget mattresses frequently drop 20-30% during these events.
Frequently Asked Questions
Can you get a good mattress for under $500 in Australia?
Yes — brands like Zinus and Giselle Bedding sell well-reviewed mattresses between $250-$450 on Amazon.com.au. You won't get premium cooling technology or luxury finishes, but core comfort, support, and durability are solid in this range. The biggest compromise is usually edge support.
What's the best budget mattress type for side sleepers?
Memory foam in medium firmness (5-6 out of 10) is the best budget option for side sleepers. It contours around the shoulder and hip to relieve pressure points. Avoid firm spring mattresses at this price — they create pressure hot spots at the shoulder for side sleepers.
How long will a cheap mattress last?
A quality budget mattress (around $300-$500) should last 5-7 years with proper care. Key factors are foam density and using a mattress protector. Mattresses under $200 typically last 2-3 years before noticeable sagging. Using a protector and rotating every 3 months extends any mattress's life.
Is it worth buying a mattress on Amazon Australia?
For budget mattresses, Amazon.com.au is one of the best options. Free delivery, easy returns, and verified reviews make it lower risk than unknown websites. Brands like Zinus and Giselle have tens of thousands of reviews. The main downside is you can't try before buying, but at this price the risk is manageable.
Affiliate disclosure: This guide contains affiliate links. If you purchase via our links, AUPicks may earn a commission at no extra cost to you. This does not influence our rankings — all picks are based on genuine research.