Man-sleeping-on-Sleep-Firm-Mattress-1-Sleep Firm

Find Your Perfect Firm

Three expertly engineered mattresses one firmness philosophy. Australian made in Melbourne. Compare every spec to find your match.

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15-Year Warranty

150-Night Trial

BedBuyer Award Winner 2026

Australian Made

4.9 Stars on ProductReview

Mattress Range

The Sleep Firm Range

All mattresses share our signature S+ Pro 5-Zone Pocket Spring System up to 1,326 springs, 42% stronger than standard. The difference is in your preferred firmness level.

Most Popular
Firmness
9/10
Enjoyably Firm

Sleep Firm Mattress

The classic. Very firm, endlessly supportive — the mattress that started it all.

From $1,099

Key Features

  • High density foam comfort layers
  • S+ Pro 5-Zone Pocket Spring System
  • Up to 1,326 springs (King)
  • Boomerang open-cell foam (cool sleep)
  • Edge-to-edge support
  • Next day delivery (Melbourne Metro)

Specs

Height
26 cm
Springs (Queen)
900
Springs (King)
1,326
Warranty
15 Years
Trial
150 Nights
Made In
Melbourne

Ideal For

Back sleepers Stomach sleepers Side sleepers All body types Back pain support

Available Sizes

Size Dimensions Price
Single 188×92×26 cm From $1,099
King Single 203×107×26 cm From $1,299
Double 188×138×26 cm From $1,399
Queen 203×153×26 cm From $1,499
King 203×183×26 cm From $1,799
Best Firm 2026
Firmness
9.5/10
Ultra Firm

Sleep Firm Ultra

Maximum firmness. Zero compromise. Built for those who want the absolute firmest surface possible.

From $1,499

Key Features

  • Double layer of ultra firm foam
  • Ultra firm pocket springs
  • S+ Pro 5-Zone Pocket Spring System
  • Up to 1,326 springs (King)
  • No give, no sink — edge to edge
  • Bedbuyer's Best Firm Mattress 2026

Specs

Height
28 cm
Springs (Queen)
900
Springs (King)
1,326
Warranty
15 Years
Trial
150 Nights
Made In
Melbourne

Ideal For

Back sleepers Stomach sleepers Heavier body types Zero-sink preference Maximum spine support

Available Sizes

Size Dimensions Price
Single 188×92×28 cm From $1,499
King Single 203×107×28 cm From $1,799
Double 188×137×28 cm From $1,899
Queen 203×152×28 cm From $1,999
King 203×183×28 cm From $2,399
Premium
Firmness
7/10
Luxe Firm

Sleep Firm Luxe

Firm support meets cloud-like indulgence. Italian Water Gel Foam for those who want firmness with a plush touch.

From $1,899

Key Features

  • CloudGel™ Italian Water Gel Foam
  • Temperature-regulating, naturally antibacterial
  • S+ Pro 5-Zone Pocket Spring System
  • Boomerang foam for cool sleep
  • Tallest profile at 30 cm
  • Ideal for those wanting pressure relief

Specs

Height
30 cm
Springs (Queen)
900
Springs (King)
1,326
Warranty
15 Years
Trial
150 Nights
Made In
Melbourne

Ideal For

Side sleepers Hot sleepers Pressure relief needs Couples Luxury seekers

Available Sizes

Size Dimensions Price
Single 188×92×30 cm From $1,899
King Single 203×107×30 cm From $2,299
Double 188×137×30 cm From $2,399
Queen 203×152×30 cm From $2,499
King 203×183×30 cm From $2,999

Side-by-Side

Side-by-Side Comparison

Every spec, head to head.

Comparison of Sleep Firm mattresses
Feature Sleep Firm Sleep Firm Ultra Sleep Firm Luxe
Starting Price $1,099 $1,499 $1,899
Firmness Rating 9/10 — Firm 9.5/10 — Ultra 7/10 — Balanced
Height 26 cm 28 cm 30 cm
Spring System S+ Pro 5-Zone S+ Pro 5-Zone Ultra S+ Pro 5-Zone
Springs (King) Up to 1,326 Up to 1,326 Up to 1,326
Comfort Foam Boomerang Foam Double Ultra Firm Foam CloudGel™ Italian Gel Foam
Temperature Regulation Open-cell foam Open-cell foam Advanced gel cooling
Best For All sleepers Back & stomach sleepers Side & hot sleepers
Next Day Delivery (Melb) ✓ – –
Trial 150 nights 150 nights 150 nights
Warranty 15 years 15 years 15 years
GECA Certified ✓ ✓ ✓
Sensitive Choice ✓ ✓ ✓
Spinal Foundation Endorsed ✓ ✓ ✓
Award – Bedbuyer Best Firm 2026 –

Mattress Engineering

What’s Inside Every Sleep Firm Mattress

Shared engineering that defines the Sleep Firm standard.

S+ Pro 5-Zone Pocket Spring

Individually encased springs in medical-grade fabric. Five targeted zones deliver precise support where your body needs it most head, shoulders, lumbar, hips, and legs.

  • 1,326 springs in King
  • 42% stronger than standard
  • 5 sleeping zones

Boomerang Open-Cell Foam

Premium density foam with an open-cell structure that promotes airflow, regulates temperature, and springs back into shape keeping your sleep cool and your mattress lasting longer.

  • Open-cell structure
  • Cool sleep environment
  • Bounce-back recovery

Foam Box Edge

A reinforced foam perimeter provides genuine edge-to-edge support no roll-off, no soft edges. Every centimetre of the mattress is usable sleep surface.

  • Edge-to-edge firmness
  • No roll-off design
  • Full surface usability

Australian Made in Melbourne

Designed, cut, stitched, and assembled in Melbourne by Chiropedic a family-owned manufacturer with over 30 years of expertise. Not imported. Not mass-produced overseas.

  • 30+ years of craftsmanship
  • Chiropedic manufactured
  • Melbourne made

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