Christmas & New Year Break: Our shop is closed 25 December – 7 January. You can still place orders online, and they’ll be processed when we return on 8 January.
📢 Update: You can now contact us by landline 02 6685 6722 or Shop Mobile 0490 078 621 — available for both calls and texts.
Australia's most certified organic latex mattress, made by hand in Byron Bay. For over 44 years, Zentai Living has been crafting natural sleep surfaces from 100% GOLS-certified latex — no synthetic fillers, no harmful chemicals, no compromises.
A latex mattress is made from the natural sap of the Hevea brasiliensis rubber tree — a renewable resource harvested sustainably, primarily in Sri Lanka. When that latex is certified to the Global Organic Latex Standard (GOLS), it means the entire supply chain has been independently verified: from the plantation to the processing facility to the finished mattress in your bedroom.
Not all latex mattresses are equal. There are three types on the market:
100% Natural Latex is pure tree sap with no synthetic additives. It's what we use at Zentai. It's the only type that can carry GOLS certification.
Blended Latex mixes natural rubber with synthetic SBR rubber derived from petroleum. Many mattresses marketed as "latex" or even "natural latex" in Australia are blended. Blended latex cannot achieve GOLS certification.
Synthetic Latex is made entirely from petrochemicals. Despite the name, it shares little with natural latex beyond its feel.
The certifications tell you which you're getting. GOLS certification — issued by Control Union, an independent third-party body — requires that the latex content is at least 95% organic. Oeko-Tex Standard 100 and ECO Institut testing verify that the finished mattress contains no harmful chemicals or emissions. If a mattress cannot show you these certificates with verifiable registration numbers, it's worth asking why.
Open a conventional foam mattress and you may notice a smell — that's volatile organic compounds (VOCs) off-gassing from the synthetic materials. It typically fades after a few weeks, but the compounds were there from the start.
Natural latex doesn't off-gas. There are no synthetic foams, no chemical adhesives, and no petrochemical derivatives to release. Every Zentai mattress is independently tested by the ECO Institut in Germany — one of the world's most rigorous emissions-testing laboratories — and certified to have no harmful emissions. You can sleep on it from day one.
Our latex is also certified to Oeko-Tex Standard 100 Class 1 — the highest classification available, reserved for products safe enough for newborns. This means the materials have been tested for over 100 harmful substances including pesticides, heavy metals, and formaldehyde, and found to be clear.
Natural latex has a cell structure that rebounds rather than compacts. Every time you lie down and get up, the latex returns to its original shape. This resilience is what gives organic latex mattresses their extraordinary longevity.
Zentai's mattresses carry an LGA durability score of 99 out of 100 — independently tested by the German LGA testing institute, which simulates years of use to verify structural integrity. The practical result: a well-maintained Zentai mattress will last 15 to 25 years. A typical memory foam mattress lasts 7 to 10.
Over two decades, the cost-per-year comparison often favours organic latex — even at a higher upfront price.
Latex conforms to the contours of your body, relieving pressure at the shoulders, hips, and knees — the points where conventional mattresses can create tension. Unlike memory foam, which slowly compresses and slowly recovers, natural latex responds instantly. When you shift position in the night, the mattress adjusts with you, not after you.
This makes latex particularly well-suited to side sleepers, who need cushioning at the shoulder and hip, and to people with chronic back or joint pain who benefit from consistent pressure relief throughout the night.
The open-cell structure of Dunlop-process latex allows air to circulate through the mattress as you sleep. There are no dense foam layers trapping body heat, and no gel infusions needed to compensate. Natural latex breathes — which matters in a country where summers in much of Australia make sleeping in a warm bedroom the norm, not the exception.
Natural latex is inherently inhospitable to dust mites, mould, and mildew. Its dense, seamless surface gives microscopic allergens nowhere to accumulate. For asthma and allergy sufferers, this is a meaningful consideration — particularly compared to conventional mattresses, which can become significant reservoirs of allergens over time.
| Organic Latex (Zentai) | Memory Foam | |
|---|---|---|
| Material | Natural rubber tree sap | Petroleum-derived polyurethane |
| Certifications | GOLS, Oeko-Tex 100 Class 1, ECO Institut | CertiPUR-US (chemicals only) |
| Off-gassing | None — ECO Institut certified | Common in first weeks |
| Response | Instant rebound | Slow compression and recovery |
| Temperature | Naturally breathable | Retains heat; gel layers reduce but don't eliminate this |
| Durability | 15–25 years | 7–10 years |
| Motion isolation | Good | Excellent |
| Environmental impact | Renewable, biodegradable | Non-renewable, non-biodegradable |
Memory foam has a genuine advantage in motion isolation — if you or your partner are a very restless sleeper, the slow-response foam absorbs movement exceptionally well. For most people, however, the combination of longevity, breathability, chemical-free materials, and instant pressure relief makes organic latex the stronger long-term choice.
Every Zentai organic latex mattress begins as liquid sap — tapped by hand from rubber trees on GOLS-certified plantations and shipped to our production partners, who use the Dunlop process to transform it into solid latex cores.
In the Dunlop process, fresh latex is poured into moulds, vulcanised with steam heat, and set into a dense, consistent core. This process preserves the natural properties of the latex and avoids the chemical treatments required in some alternative production methods. The result is a heavy, durable, and genuinely organic material.
The cores then come to our Byron Bay workshop, where our team assembles each mattress by hand. Depending on the model, layers are combined to achieve the target firmness profile — a softer comfort layer over a firmer support core, or a single-firmness design for those who prefer a more consistent feel. The latex is enclosed in a cover made from, chosen for breathability and natural fibre credentials.
Before any mattress leaves our workshop, it is checked against our quality standards. We have been doing this in Byron Bay for over 44 years. It is not a process we have outsourced or automated.
We don't ask you to take our word for it. Every certification Zentai holds is independently issued and publicly verifiable.
The most important certification for any latex mattress. GOLS requires that the latex content of the product is at least 95% certified organic, and it covers the full supply chain — plantation, processing, and manufacturing. It is issued by Control Union, an independent accreditation body.
The ECO Institut in Cologne, Germany tests finished mattress products for chemical emissions — not just the materials, but the complete product as it arrives in your home. It is one of the most rigorous independent emissions tests available globally.
Oeko-Tex Standard 100 tests for over 100 harmful substances. Class 1 is the highest classification — it certifies that the materials are safe for direct skin contact by newborns. Zentai's latex carries this classification.
The German LGA testing institute independently tests mattress durability by simulating years of use. Zentai's organic latex mattresses score 99 out of 100. This is the scientific basis for our longevity claims — not marketing language.
| Size | Dimensions |
|---|---|
| Single | 92 × 188 cm |
| King Single | 107 × 203 cm |
| Double | 138 × 188 cm |
| Queen | 153 × 203 cm |
| King | 183 × 203 cm |
| Super King | 203 × 203 cm |
Custom dimensions are available for non-standard bed frames. [LINK: Contact us about custom sizes]
| Firmness | Best For |
|---|---|
| Soft | Side sleepers; lighter body weight (under ~70kg) |
| Medium | Side and back sleepers; most people |
| Firm | Back and stomach sleepers; heavier body weight (over ~90kg) |
Not sure? Our Byron Bay showroom has the full range to try in person. Or call us — we've been having this conversation with customers for 44 years.
Split firmness is available on Queen, King, and Super King sizes — each half of the mattress set to a different firmness for couples with different preferences.
How long does an organic latex mattress last? A well-maintained natural latex mattress typically lasts 15 to 25 years — significantly longer than memory foam, which generally needs replacing after 7 to 10 years. Zentai's mattresses have been independently tested by the German LGA institute and scored 99 out of 100 for durability. This is not a marketing claim; it is a test result.
Is an organic latex mattress worth the higher price? When you factor in lifespan, the cost per year of a quality organic latex mattress is often comparable to — or lower than — cheaper alternatives replaced more frequently. Beyond economics: you're also choosing a chemical-free, independently certified product that you'll sleep on every night for two decades. For most people who make the switch, the question becomes why they waited.
What is GOLS certification and why does it matter? GOLS (Global Organic Latex Standard) is the international benchmark for organic latex. It requires that the latex content is at least 95% certified organic and that the entire supply chain — from plantation to finished product — meets defined organic and social standards. Many mattresses sold in Australia as "natural latex" or "latex mattresses" are blended with synthetic rubber and cannot carry GOLS certification. If a mattress claims to be organic but doesn't display a verifiable GOLS certificate, ask for it.
Do organic latex mattresses off-gas? No. Natural latex contains no synthetic foams or chemical adhesives that would off-gas VOCs. Zentai's mattresses are tested by the ECO Institut in Germany — an independent third-party laboratory — and certified to have no harmful emissions. You can sleep on a Zentai mattress from the night it arrives.
Are Zentai mattresses made in Australia? Yes. Our mattresses are assembled by hand at our workshop in Byron Bay, NSW. We have been making mattresses in Australia since 1981. The latex itself is sourced from GOLS-certified plantations, primarily in Sri Lanka — which is where the world's highest-quality natural latex is produced — and then finished here in Australia.
What is the difference between Dunlop and Talalay latex? Both are processes for manufacturing natural latex cores. Dunlop is the traditional method: latex is poured into a mould, vulcanised, and set. The result is a denser, more supportive core that suits most sleepers well. Talalay involves a more complex process — the latex is poured, frozen, and then vulcanised — producing a lighter, more consistent cell structure that some sleepers find softer. Zentai uses the Dunlop process, which we have found to produce the most durable and consistent results for Australian conditions.
What sizes do you make? Single, King Single, Double, Queen, King, and Super King — all in standard Australian dimensions. We also make custom sizes for non-standard bed frames.
Do you ship across Australia? Yes. We offer free delivery across Australia.
