Sleep Firm | Australia's Best Firm Feel Mattress | 2026 Award Winner
The Sleep Firm Range
Australia's most awarded firm-mattress family. Three Australian-made models built by Chiropedic in Melbourne — engineered to deliver genuinely firm spinal support for back pain relief, stomach-sleeper alignment and long-term lower-back stability. Choose your firmness, choose your size, sleep on it for 100 to 150 nights risk-free.
The Sleep Firm Range is Australia's most awarded family of firm mattresses — winner of BedBuyer's Best Firm Feel Mattress award three years running (2024, 2025 and 2026). All three models are hand-crafted in Melbourne by Chiropedic Bedding, share the same award-winning S+ Pro 5-Zone Pocket Spring System, and are independently endorsed by the Australian Spinal Research Foundation for ergonomic design and spinal alignment.
The three Sleep Firm models are built around three different firmness profiles — so whether you need maximum extra-firm support for chronic lower-back pain, the BedBuyer-winning firm-feel original, or a softer 7/10 medium-firm with cooling gel for side and hot sleepers, there's a Sleep Firm built for you.
Choose your firmness
Sleep Firm Luxe
Award-winning Sleep Firm range
Softer top feel, firm spinal support beneath.
CloudGel™ Italian Water Gel Foam top layer delivers a cool, cushioned sleep surface that absorbs body weight evenly — ideal for side sleepers, hot sleepers and anyone graduating from a worn-out plush mattress.
Comfort layer: CloudGel™ + Boomerang® Foam
Trial: 100 Night Comfort Guarantee
Next-day delivery: Queen & King
Sleep Firm (Standard)
🏆 BedBuyer 2024 · 2025 · 2026
The original — and Australia's most awarded firm mattress.
Genuine 9/10 firm with the award-winning S+ Pro 5-Zone Pocket Spring System and Boomerang® Foam by Dunlop. Includes our full 150 Night Sleep Trial with full-refund or exchange option. Ideal for back and stomach sleepers.
Comfort layer: Boomerang® Foam
Trial: 150 Night Sleep Trial (refund or exchange)
Next-day delivery: Double, Queen & King
Sleep Firm Ultra
Award-winning Sleep Firm range
The firmest mattress we make. Zero sinking, maximum support.
Double layer of high-density Boomerang® Foam over a reinforced S+ Pro 5-Zone Pocket Spring System. Designed for back and stomach sleepers, larger frames, heavier couples, and anyone who has tried "firm" mattresses elsewhere and found them not firm enough.
Comfort layer: Double layer Boomerang® Foam
Trial: 100 Night Comfort Guarantee
Next-day delivery: Queen & King
Why the Sleep Firm range is Australia's most awarded firm mattress
🏆 Three years running — BedBuyer 2024, 2025 & 2026
The standard Sleep Firm Mattress has won BedBuyer's Australia's Best Firm Feel Mattress award three years in a row. BedBuyer describes the Sleep Firm range as "as comfortable as you will get at this level of firmness" — testing the mattresses against every other firm-feel competitor in the Australian market each year.
💪 S+ Pro 5-Zone Pocket Spring — up to 42% stronger
All three Sleep Firm models share the same award-winning S+ Pro 5-Zone Independent Spring System. Each spring is individually wrapped in N-100 medical-grade fabric and tested to be up to 42% stronger than a standard pocket spring. Five zones target firm support precisely where the body needs it — head, lower back, hips and feet.
🧱 Boomerang® Foam by Dunlop
The Sleep Firm range is the only mattress family in Australia built with Boomerang® Foam by Dunlop — a proprietary high-rebound foam that "does not lose its firmness over time". GECA certified, Ultra-Fresh anti-microbial treated, and approved by the National Asthma Council's Sensitive Choice® program.
🩺 Endorsed by the Australian Spinal Research Foundation
The Sleep Firm range has been independently assessed by licensed chiropractors and endorsed by the Australian Spinal Research Foundation for ergonomic design, function, and ability to support natural spinal alignment.
Certifications & endorsements
Also certified: Ultra-Fresh anti-microbial treated sleep surface and N-100 Medical Grade Fabric spring encasement on every Sleep Firm model.
The Sleep Firm (Standard) is covered by our full 150 Night Sleep Trial — if it's not right, you can exchange for another mattress in our range or return for a full refund. The Sleep Firm Luxe and Sleep Firm Ultra are covered by our 100 Night Comfort Guarantee, which is an exchange-only guarantee (not a refund). For the most risk-free option, start with the standard Sleep Firm — it's the BedBuyer award winner and includes the full trial.
Compare all three Sleep Firm models
| Feature | Sleep Firm Luxe | Sleep Firm 🏆 | Sleep Firm Ultra |
|---|---|---|---|
| Firmness | 7/10 — Medium-Firm | 9/10 — Firm | 9.5/10 — Extra Firm |
| Best for | Side & hot sleepers | All sleepers — especially back & stomach | Back & stomach sleepers, larger frames |
| Height | 30 cm | 26 cm | 28 cm |
| Spring system | S+ Pro 5-Zone Pocket Spring | S+ Pro 5-Zone Pocket Spring | S+ Pro 5-Zone Pocket Spring (reinforced) |
| Comfort layer | CloudGel™ Italian Gel Foam + Boomerang® Foam | Boomerang® Foam | Double layer Boomerang® Foam |
| Springs (King size) | 1,326 | 1,326 | 1,326 |
| Next-day delivery (Sydney & Wollongong) | Queen & King ✓ | Double, Queen, King ✓ | Queen & King ✓ |
| Trial | 100 Night Comfort Guarantee (exchange) | 150 Night Sleep Trial (refund or exchange) | 100 Night Comfort Guarantee (exchange) |
| Warranty | 15 years | 15 years | 15 years |
| Award | Award-winning Sleep Firm range | 🏆 BedBuyer 2024 · 2025 · 2026 Australia's Best Firm Feel | Award-winning Sleep Firm range |
How to choose the right Sleep Firm mattress
All three Sleep Firm models share the same award-winning S+ Pro 5-Zone Pocket Spring System and are hand-crafted in Melbourne by Chiropedic. The difference is the firmness profile — here's the quick guide our showroom team uses every day.
- 7/10 Medium-Firm Sleep Firm Luxe — softer top with CloudGel™ Italian gel-foam. Best for side sleepers, hot sleepers, and anyone who wants firm spinal support with a cushioned, cooling feel.
- 9/10 Firm 🏆 Sleep Firm (Standard) — the BedBuyer 3-year award winner and our most popular firm mattress. Best for back & stomach sleepers, and anyone wanting the safety of our full 150 Night Sleep Trial (refund or exchange).
- 9.5/10 Extra Firm Sleep Firm Ultra — double layer Boomerang® Foam over a reinforced spring system. Best for back & stomach sleepers, larger frames, heavier couples, and anyone who has tried "firm" mattresses elsewhere and found them not firm enough.
Why Best in Beds customers choose Sleep Firm
The Sleep Firm range is Australia's most awarded firm-mattress family — winner of BedBuyer's Australia's Best Firm Feel Mattress award three years running (2024, 2025 & 2026). Hand-crafted in Melbourne by Chiropedic, endorsed by the Australian Spinal Research Foundation, GECA certified, and approved by the National Asthma Council's Sensitive Choice® program. 15-year warranty, FREE Australia-wide delivery, and 100–150 nights to sleep on it risk-free.
Frequently Asked Questions
Which Sleep Firm mattress is right for me? +
• Sleep Firm (Standard) — 9/10 firm — the BedBuyer-winning original and our most popular firm mattress. Ideal for back and stomach sleepers, and anyone who wants genuinely firm support with the safety of our 150 Night Sleep Trial.
• Sleep Firm Luxe — 7/10 medium-firm — softer top with CloudGel™ Italian gel-foam. Best for side sleepers, hot sleepers, and anyone who wants firm spinal support with a cushioned, cooling top feel.
• Sleep Firm Ultra — 9.5/10 extra firm — double layer of Boomerang® Foam over a reinforced spring system. Best for back and stomach sleepers, larger frames, heavier couples, and anyone who has tried 'firm' mattresses elsewhere and found them not firm enough.
Still not sure? Call our team on 1300 399 676 or visit any of our three NSW showrooms — all three Sleep Firm models are on display so you can feel the difference in person.
What's the difference between the 150 Night Sleep Trial and the 100 Night Comfort Guarantee? +
The Sleep Firm Luxe and Sleep Firm Ultra are covered by our 100 Night Comfort Guarantee. This is an exchange-only guarantee — if the firmness isn't right, we'll arrange an exchange to another mattress in our range, but it doesn't include a full refund.
If you want the most risk-free starting point, we recommend the standard Sleep Firm — it's the BedBuyer 3-year award winner and includes the full 150 Night Sleep Trial.
Is the Sleep Firm range really Australian made? +
Do you deliver next-business-day? +
• Sleep Firm (Standard): next-day delivery on Double, Queen and King. Single and King Single are made-to-order in 7–14 days.
• Sleep Firm Luxe and Ultra: next-day delivery on Queen and King only. Single, King Single and Double are made-to-order in 7–14 days.
All sizes ship FREE Australia-wide. Order before 2 pm AEDT for next-business-day dispatch.
Are Sleep Firm mattresses good for back pain? +
For chronic lower-back pain or stomach sleepers, the Sleep Firm Standard 9/10 or Sleep Firm Ultra 9.5/10 are usually the right choice. For side sleepers with shoulder/hip pressure issues, the Luxe 7/10 with CloudGel™ pressure relief is often preferred. We always recommend speaking with your GP or physio for individual advice.
Can I use a Sleep Firm mattress on an adjustable bed base? +
Do you offer Click and Collect? +
• Best in Beds Campbelltown — 20 Blaxland Road, Campbelltown (Macarthur / South-West Sydney)
• Best in Beds Prospect — 27 Rowood Road, Prospect (Western Sydney)
• Best in Beds Warrawong — 91-95 King Street, Warrawong (Wollongong / Illawarra)
What's the warranty period on Sleep Firm mattresses? +
To preserve the warranty: always use a quality mattress protector, ensure the mattress sits on a solid supportive base (no flexible slats or adjustable electric bases), and rotate the mattress twice in the first month then monthly thereafter.
