FirmCore Plus Single Mattress

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FirmCore Plus Single Mattress

$279.00 $259.00 SAVE $20.00
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Peace of Mind Guarantee
Easy Returns
Warranty Included
Fast NZ-wide Delivery & Silverdale Pickup

Why HardCore Plus?

HR Pocket Spring Support
HR Pocket Spring Support
Independent springs provide firm, targeted support across the mattress.
Firm Comfort Feel
Firm Comfort Feel
A firm feel suits sleepers wanting stronger surface support.
Cushioned Euro Top
Cushioned Euro Top
The Euro Top adds an extra cushioned comfort layer.
High-Density Foam Layers
High-Density Foam Layers
Support foam adds resilience and helps maintain the mattress shape.
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SKU: 24380
Availability: In Stock Pre order Out of stock
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6 Ingot Place, Silverdale, Auckland. Open 7 Days from 9AM - 5PM

Product Description

The FirmCore Plus takes firm support to the next level. Two layers of high-density foam on top of a pocket spring core means this mattress is built to stay firm, stay flat, and stay supportive - long after cheaper alternatives have given up.

What This Product Is Good For

  • Everyday single-bed setups
  • Bedrooms and guest rooms
  • Sleepers who prefer a firm feel
  • Replacing a standard single mattress

Why This Is a Smart Choice

  • Dual high-density foam layers - more resilience, longer-lasting shape retention than single-foam designs
  • Pocket spring core delivers firm, targeted support - ideal for back sleepers and those needing lumbar care
  • Two-layer foam construction is the key upgrade over the FirmCore Classic
  • Soft-touch knitted cover - breathable and gentle on skin
  • Firm comfort level - holds firm through years of nightly use
  • Total height 25cm - deeper profile for a more substantial sleep surface

Materials & Build

  • 300g antibacterial knitted fabric with a spray cotton layer
  • High-density support foam
  • Additional firm comfort foam
  • 22cm HR independent pocket spring system

A practical single mattress for customers wanting a firm feel with added Euro Top cushioning.

Due to lighting and screen differences, actual product colours may vary slightly from images shown.

Key Features

Features
  • 25cm Euro Top single mattress
  • Firm comfort feel
  • 92 x 188cm single mattress size
  • 300g antibacterial knitted fabric
  • Spray cotton comfort layer
  • High-density support foam
  • Additional firm comfort foam layer
  • 22cm HR independent pocket spring system

Specifications

Mattress SizeSingle
Product Dimensions92 x 188 x 25 cm
Mattress Thickness25 cm
FirmnessFirm
Product Weight20.80 kg
Material / Layers300g antibacterial knitted fabric
Spray cotton
High-density support foam
Firm comfort foam
22cm HR independent pocket springs
ColourWhite

SKU 24380

Package Contents

Assembly RequiredNo
CartonCarton A: 31 × 31 × 100 cm (21.90kg)
Package Contents1 × FirmCore Single Mattress

Delivery Information

Shipping Costs

Shipping is available throughout New Zealand. Delivery costs are calculated at checkout based on your address, item size and weight, and delivery method.

Dispatch & Delivery

Most in-stock orders are dispatched within one business day after payment confirmation.

  • Standard courier delivery: approximately 1–3 working days
  • Rural delivery: please allow an additional 1–2 working days
  • Oversized or freight items: approximately 2–5 working days

Pre-order items will be dispatched once stock becomes available. The estimated dispatch timeframe is shown on the product page and in your order confirmation.

Tracking details will be emailed after dispatch. Orders containing multiple items may arrive in separate deliveries. Delivery timeframes are estimates and may vary.

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Warranty & Returns

We take product quality seriously and stand behind every purchase.

10-Year Limited Warranty
Covers manufacturing defects under normal household use. Normal wear, comfort preference, normal body impressions, stains, moisture or mould damage and misuse are excluded.

30-Day Returns
Changed your mind? Eligible products can be returned within 30 days of delivery, subject to our Returns Policy.

For full details about coverage, eligibility, exclusions and making a claim, please refer to our Warranty Policy and Returns Policy.

Important: These warranty periods are in addition to, and do not limit, consumers’ rights under the New Zealand Consumer Guarantees Act 1993.

Frequently Asked Questions

Why choose treasurebox?

Modern Furniture at Fair Prices

Our promise? High-quality furniture at radically lower (and much fairer) prices than comparable retailers.

30-Day Satisfaction Guarantee

We're confident you'll love your new treasurebox furniture, but just to make sure, you have 30 days to try it out.

We're Here To Help

If questions arise, our friendly and knowledgeable Customer Care team is just a phone call, chat, or email away.