Mattresses Australia 2026: In-Stock Mattress Hub by Size, Spring Type & Foam

Last updated: 2026-09-25 (Australia/Sydney) · Written and reviewed by the Darrah Opens team, Australian home & outdoor specialists.

Quick answer: Pick the size first (Australian queen 153 x 203 cm, king 183 x 203 cm, king single 107 x 203 cm), then the build: pocket spring for less partner movement and better airflow, Bonnell spring for a firmer budget option, memory foam for pressure relief. Around 20-35 cm thick suits most adults; thinner mattresses suit bunks and trundles.

This hub lists 190 in-stock products from the Mattresses collection at Darrah Opens, checked on 25 September 2026. It sorts pocket spring, Bonnell spring and foam mattresses plus toppers and bases so you can shortlist by size and build.

Browse the full Mattresses collection →

What is in the mattresses range

The range covers pocket spring and Euro-top mattresses, Bonnell spring mattresses, memory foam and gel foam mattresses, folding foam mattresses, mattress toppers and ensemble bases from single to super king.

How to choose a mattress

  • Match the mattress size name to your bed frame and confirm the centimetres on the product page.
  • Pocket spring (individually wrapped coils) limits partner disturbance; Bonnell spring is firmer and usually cheaper.
  • Memory and gel foam relieve pressure points; gel or open-cell layers help hot sleepers.
  • Check thickness against your frame and bedding: deep Euro-top mattresses may need deep-pocket sheets.
  • Bunks and trundles need thinner mattresses so the safety rail stays effective; follow the bunk maker's maximum thickness.

Australian mattress sizes (cm)

Size Mattress (cm)
Single 92 x 187
King single 107 x 203
Double 138 x 187
Queen 153 x 203
King 183 x 203

Sizes can vary by a centimetre or two between brands, and super king is not a single fixed standard, so check each product page.

Before you order: sizes, delivery and returns

  • Confirm dimensions, inclusions and power or fitting requirements on each product page; product titles are shortened here.
  • Check the delivery details shown at checkout for your postcode, and allow access space for bulky items.
  • Read our refund policy before you buy, and contact us if you need a spec confirmed.

In-stock mattresses (updated 25 September 2026)

Prices and live stock are shown on each product page.

Pocket spring and Euro-top mattresses

Memory and gel foam mattresses

Bonnell spring mattresses

Mattress toppers

Other in-stock picks

Folding and portable mattresses

Ensemble bases

How this list is kept current

We re-check every product link against the live store. On 25 September 2026 we removed 3 out-of-stock or discontinued links and kept 190 that were available to order. If an item sells out between checks, the collection page always shows the current range.

Frequently asked questions (2026)

What is the difference between pocket spring and Bonnell spring?

Pocket springs are individually wrapped, so they move independently and reduce partner disturbance. Bonnell springs are linked together, which usually feels firmer and costs less.

How thick should a mattress be?

Most adults are comfortable on about 20-35 cm. Thinner mattresses of about 13-16 cm suit bunks, trundles and guest folding beds.

How long does a mattress in a box take to expand?

Most roll-packed mattresses take shape within a few hours, but allow up to 24-48 hours to fully expand. Air the room to reduce any new-foam smell.

Should I use a mattress topper?

A topper can soften a firm mattress or add cooling. It does not fix a sagging mattress, so replace a mattress that has lost support.

Where can I see prices and current stock?

Each product page shows the current price and whether it can be ordered. This hub only links products that were in stock when we last checked.

Related Darrah Opens guides

Shop the Mattresses collection

Compare every mattress size and build on the collection page.

Shop Mattresses at Darrah Opens →