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A dark gray quilted mattress on a white upholstered bed frame, styled in a minimalist bedroom with a wooden side table, vase, and curtain.

Steady Firm Support Mattress

5.0 · 3 reviews
$559
Sale price  $559 Regular price 
Mattress Firmness: Firm • 28cm

For bed frames with a headboard, please ensure that it fits a 28cm thick mattress.

Mattress Size: Single

Mattress Dimensions

Size Guide

Have a bed frame? Match its dimensions. Buying a bed frame for the mattress? Choose 190cm if under 175cm, 200cm if above.

Request Later Delivery

Would you like delivery after 12 Dec 2026?

Estimated delivery: 28 Nov – 12 Dec 2026

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Delivered in 3 - 5 weeks

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Free delivery and unpacking

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10 year foam warranty

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Product Details

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A firm hybrid pocket spring mattress with breathable 3D air fiber and extra-thick springs for stronger support with minimal sinkage.

  • Firmness: Firm (8/10), offering a stable sleeping surface with minimal contouring and sinkage.
  • Comfort Layer: High-density polyurethane foam and three layers of breathable 3D air fiber provide firm, responsive comfort while promoting airflow to reduce heat build-up.
  • Support Layer: Individual pocket springs with extra-thick 2.3mm steel coils provide stronger support while reducing motion transfer between sleeping partners.
  • Edge Support: Reinforced M-shaped springs and high-density polyurethane foam around the perimeter provide greater stability when sitting or sleeping near the edges.
  • Packaging: Flat-packed to preserve its mattress structure and ready-to-use upon delivery.

How It Feels

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Mattress firmness for Steady Firm Support Mattress
  • Minimal contouring, keeping your body more level on the surface
  • Firm and stable, with very little sink

Who It Is For

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Materials

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Breathable cover for airflow, three layers of 3D air fibre for firm, resilient cushioning, and individually pocketed steel springs for stable support and reduced motion transfer.

COVER LAYER

Breathable 5D fabric

COMFORT LAYER

High density polyurethane foam
3D air fiber

SUPPORT LAYER

Individual pocket springs

EDGE SUPPORT

M-shaped springs
High density polyurethane foam
Product Policies

Delivery & Assembly

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In-stock mattresses are typically delivered within 1-3 days after order confirmation.

For mattresses that need to be produced, delivery is typically completed within 3-5 weeks after order confirmation.

You can also request a later delivery date if needed.

We offer free doorstep delivery.

Upon request, we can also carry the mattress into your home, place it on your bed frame and unpack it at no additional cost.

Additional services, such as carrying the mattress up staircases and old mattress disposal, incur separate charges.

We will contact you to arrange your delivery date and time slot in advance.

View delivery policy

Cancellation & Returns

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Standard-size mattresses can be cancelled with a 3% fee.

Only unopened standard-size mattresses in their original packaging are eligible for return within 30 days of delivery, subject to a $50 restocking fee.

Custom-size mattresses cannot be cancelled after confirmation or returned.

View cancellation & return policy

Warranty

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10-year limited warranty covering visible indentations deeper than 3cm and foam cracking under normal use.

View warranty policy

Mattress Suitability Quiz

Tell Us About Your Sleep Profile

Select the options that best describe you

1. Age

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2. BMI

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3. Sleeping Position

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Your Personalized Recommendation

Complete your sleep profile to see:

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Your recommended mattress firmness

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How well this mattress matches your sleep profile


Product Layers

1

5D Fabric with Polyester Fiber

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What it is

Breathable 5D fabric padded with a thick layer of polyester fiber

How it helps

5D fabric is made from polyester fibers and features a thick, three-dimensional multi-layer mesh that promotes airflow and helps disperse moisture.

The polyester fiber provides a soft, plush layer that enhances overall comfort. Positioned closest to the body, it gently contours to your body's natural curves while helping to relieve pressure.

2

Supportive Comfort Layer

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What it is

Layer of high density polyurethane foam placed underneath the polyester fiber within the quilted top layer.

How it helps

Provides stable support and helps distribute weight evenly to maintain proper spinal alignment. Also offers gentle contouring, allowing the foam to adapt slightly to your body’s shape without excess sink. This balance of support and light contouring enhances comfort and resistance to sagging overtime.

3

Firm & Cooling Comfort Layer

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What it is

A firm comfort layer made from three layers of highly breathable, structured 3D air fibers with an open-cell construction.

How it helps

The layered structure of stiffer 3D air fiber provides stronger, more responsive support with less compression under body weight. At the same time, the open spaces within each layer allow air to circulate and heat to disperse, helping the mattress remain cooler and more comfortable throughout the night.

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Motion Isolating Support Layer

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What it is

Individual pocket coil system consisting of steel springs with a 2.3mm diameter each encased in its own fabric pocket.

How it helps

Thick-diameter steel coils provide firm, long-lasting support that resists sagging. With each coil individually encased, the layer adapts to your body’s natural curves while minimizing motion transfer. The open structure of the coils also promotes airflow, helping to keep the mattress cool throughout the night.

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Perimeter Spring + Foam Encasement

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What it is

Thin layer of polyurethane foam encasement and M-shaped springs along the perimeter of the mattress.

How it helps

Prevents you from feeling the pocket springs from the side of the mattress and reduces rolling off feel when you sit on the edges.

Mattress component breakdown option selected for Steady Firm Support Mattress
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Key Features of the Steady Firm Support Mattress

3D Air Fibre

Resilient Comfort, Cooler Sleep

Originally developed through advanced German engineering, 3D Air Mesh combines responsive support with outstanding breathability.

Its highly ventilated structure encourages airflow and helps dissipate heat for enhanced sleeping comfort.

High Density Foam

Durable Support, Peaceful Sleep

Designed to provide lasting support, high-density foam helps maintain proper body alignment while absorbing everyday movement.

The result is a stable sleeping surface with reduced motion transfer and maintains comfort over years of use.

Individual Pocket Springs

Personalized Support, Undisturbed Sleep

Individually wrapped pocket springs respond independently to your body's contours.

This helps to reduce partner disturbance while providing quiet, durable support for a more restful night's sleep.


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