Best Kids Mattress for Bunk Beds in Sydney - Eco Kids Bunk Mattress

Looking for the right mattress for your kids' bunk bed or trundle in Sydney? Not all kids mattresses are safe or suitable for bunks. Most regular kids mattresses are too thick - they push the sleeper above the top-bunk safety rail, defeating its purpose. The Eco Kids Bunk Mattress is the model purpose-built for bunks and trundles: a 14.5 cm low-profile design, hybrid spring-and-foam construction, bamboo lyocell cover, and Best in Beds is the Officially Licensed Eco Kids Dealer for Greater Sydney with free express next-business-day delivery.

Why the Eco Kids Bunk Mattress is the right choice for bunk beds

14.5 cm low-profile design — sits below the top-bunk safety rail line so the rail still does its job
Medium-firm feel — proper spinal support for growing kids, not the soft sag of a cheap foam mattress
Bamboo lyocell cover, OEKO-TEX Standard 100 certified — breathable, hypoallergenic, anti-microbial
Chiro Flex ES spring core with edge support — won't sag or roll, even on the top bunk
Hand-crafted in Melbourne, Australian Made
🏆 Australia's Best Kids Mattress 2024, 2025 & 2026 — BedBuyer
🏆 Gold Winner — Mum Central Awards for Best Beds and Mattresses
🏆 Bronze Winner — Clean + Conscious Awards
No harmful glues, bonding agents or chemicals
150 Night Sleep Trial + 10-year warranty

What about trundle beds?

The Eco Kids Bunk Mattress also works perfectly in trundle beds, where mattress thickness needs to stay under 15 cm so the trundle can slide back under the main bed. It's the same height-conscious design that makes it ideal for bunks. Available in Single ($649) and King Single ($699).

🏆 BedBuyer 2026 Winner

Eco Kids Mattress

From $749.00

The original — Australia's Best Kids Mattress 2024, 2025 & 2026. Natural bamboo cover, GECA-certified foam, 15-year warranty.

View product →

🏆 Mum Central Gold

Eco Kids Bunk Mattress

From $649.00

Purpose-built 14.5 cm low-profile mattress for bunks and trundles. Bamboo lyocell cover, hybrid spring core, hand-crafted in Melbourne.

View product →

🏆 Clean + Conscious

Eco Kids Deluxe Pillow Top

From $999.00

Plush 50 mm GECA-certified pillow top over the Chiro Flex ES spring system. 15-year warranty, 100% vegan, hand-crafted in Melbourne.

View product →

🌿 Natural Latex

Eco Kids Nature Luxe

From $1,499.00

Premium model — 50 mm 100% natural latex pillow top, eco-INSTITUT certified. Australian Made under licence 6697. Allergy-friendly.

View product →

👑 King Single

Eco Kids King Single

From $849.00

Most popular king single in our kids range — gives growing kids and teenagers room to stretch out. Browse all king single mattresses.

View king single range →

Boori Kids Single Bed Pocket Spring Mattress

💰 Best Value

Boori Kids Single Pocket Spring

From $365.66

Budget-friendly pocket-spring single mattress for younger kids and guest rooms. Browse all single mattresses.

View product →

Free express next-day delivery to Sydney bunk-bed buyers

Order before 2 pm and we'll despatch the Eco Kids Bunk Mattress the same day for free express next-business-day delivery across Greater Sydney - including South-West Sydney, Western Sydney, North Shore, Inner West, Eastern Suburbs, the Hills District and the Sutherland Shire. Wollongong and the Illawarra are also inside our free-delivery zone. At just 14.5 cm thick, the Eco Kids Bunk Mattress is purpose-built to be light and easy to carry up to top bunks. 24-hour Click & Collect from any of our three showrooms is also available.

Want to compare bunks vs the standard Eco Kids in person?

Visit any of our three NSW showrooms - all are Officially Licensed Eco Kids Dealers with both the Eco Kids Bunk and the standard Eco Kids Mattress on display side-by-side:

Eco Kids Mattress Prospect — Western Sydney
Eco Kids Mattress Campbelltown — South-West Sydney
Eco Kids Mattress Warrawong — Wollongong & Illawarra

Suburb delivery pages

Free express next-day delivery to your local Sydney suburb:

Browse the full Eco Kids collection, view the dedicated Eco Kids Bunk Mattress product page, or call us on 1300 399 676 for help choosing the right size.

🏆 2026 Award Winner

Australia's BEST KIDS MATTRESS — BedBuyer 2024, 2025 & 2026

🚚 FREE Next Day Delivery

Sydney & Wollongong — order before 2 pm on any Eco Kids mattress

✅ Officially Licensed Eco Kids Dealer

Buy online with confidence or visit us in-store to try them yourself

Frequently Asked Questions

What thickness of mattress is safe for a bunk bed? +

For top bunks, the maximum recommended mattress thickness is usually 15–18 cm so the bunk's safety rail still extends at least 12 cm above the mattress surface. The Eco Kids Bunk Mattress is 14.5 cm, designed specifically to meet this standard. Regular kids mattresses (20–25 cm) are usually too thick for safe top-bunk use.

Can the Eco Kids Bunk Mattress be used on a trundle bed? +

Yes — the same 14.5 cm low-profile design that makes it safe for bunks also makes it perfect for trundle beds, where the mattress needs to stay under 15 cm to slide back under the main bed. It's available in Single ($649) and King Single ($699).

What's the difference between the Eco Kids Bunk Mattress and the standard Eco Kids Mattress? +

The Bunk Mattress is 14.5 cm thick (purpose-built for bunks and trundles), uses a bamboo lyocell OEKO-TEX cover, hybrid spring-and-foam construction, hand-crafted in Melbourne, with a 10-year warranty. The standard Eco Kids Mattress is taller (~20 cm), uses a natural bamboo cover with additional comfort layers, and comes with a 15-year warranty. Both have the same non-toxic certifications. The Bunk model is purely about safety and fit on bunks; the standard model is for regular kids beds.

Is the Eco Kids Bunk Mattress firm enough for a growing child? +

Yes — it's a medium-firm feel, which orthopaedic and paediatric guidance generally recommends for growing spines. The Chiro Flex ES spring system with edge support gives proper alignment without the soft sag of cheap foam-only bunk mattresses. It's been awarded Australia's Best Kids Mattress by BedBuyer in 2024, 2025 and 2026 partly for this reason.

Do you deliver bunk mattresses across Sydney? +

Yes — free express next-business-day delivery on every Eco Kids Bunk Mattress across Greater Sydney, including South-West Sydney, Western Sydney, North Shore, Inner West, Eastern Suburbs, the Hills District, and the Sutherland Shire. Wollongong and the Illawarra are also covered. Order before 2 pm and it ships the same day. No delivery charge, no minimum spend.

Where can I see the Eco Kids Bunk Mattress in person? +

All three Best in Beds showrooms are Officially Licensed Eco Kids Dealers with the Bunk Mattress on display: Prospect (Western Sydney), Campbelltown (South-West Sydney), and Warrawong (Wollongong / Illawarra). Pop in to feel the difference between the Bunk and the standard Eco Kids Mattress side-by-side.