How Australian Mattress Sizes Compare with US & UK Standards

· 4 min read
How Australian Mattress Sizes Compare with US & UK Standards

When it comes to comfort and quality sleep, the size of your mattress matters just as much as its material. But if you've ever browsed online stores or walked into a global furniture showroom, you've probably been confused by the difference in mattress sizing between countries. A double in Australia isn't the same as a full in the US, and UK sizes follow their own chart altogether.

If you're searching for a latex mattress in Perth or anywhere in Australia, understanding these international differences is crucial—especially if you're importing bed frames or linens or comparing global mattress brands.

Australian Mattress Sizes at a Glance

Let’s first take a look at the standard Australian mattress sizes, measured in centimetres (cm):

Size

Dimensions (W x L)

Single

92 x 188 cm

King Single

107 x 203 cm

Double

138 x 188 cm

Queen

153 x 203 cm

King

183 x 203 cm

Super King

203 x 203 cm

These sizes are widely accepted across Australian brands and retailers. Whether you’re buying a foam, innerspring, or latex mattress Perth residents prefer for natural support, the size names remain consistent.

US Mattress Sizes vs. Australian Sizes

In the United States, mattress sizes are slightly different, especially in terms of length and width. Here’s a quick comparison:

US Size

Dimensions (W x L)

Comparable AU Size

Twin

96.5 x 190.5 cm

Closest to AU Single

Twin XL

96.5 x 203 cm

Between Single & King Single

Full (Double)

134.5 x 190.5 cm

Similar to AU Double

Queen

152.5 x 203 cm

Same as AU Queen

King

193 x 203 cm

Slightly larger than AU King

Cal King

183 x 213.5 cm

Longer than AU King

As you can see, some of the names like Queen and King overlap in both countries, but the actual dimensions vary just enough to cause problems with sheets, bases, and toppers.

If you’re planning to invest in a latex mattress in Perth, stick with Australian sizes to avoid compatibility issues with bed frames or accessories.

UK Mattress Sizes vs. Australian Sizes

Now let’s compare mattress sizing in the United Kingdom:

UK Size

Dimensions (W x L)

Comparable AU Size

Single

90 x 190 cm

Similar to AU Single

Small Double

120 x 190 cm

Smaller than AU Double

Double

135 x 190 cm

Slightly smaller than AU Double

King

150 x 200 cm

Slightly smaller than AU Queen

Super King

180 x 200 cm

Slightly smaller than AU King

UK mattresses are often shorter and narrower than their Aussie counterparts. So, if you’ve relocated from the UK to Perth and plan to buy a latex mattress, it’s worth measuring your existing bed frame carefully. Many expats find their UK-sized bedding doesn’t match well with Australian mattresses.

Why These Differences Exist

The reason behind these size differences lies in regional manufacturing standards, bedding traditions, and consumer preferences. Australia tends to offer slightly wider and longer mattresses, especially in larger sizes. That’s great news for taller individuals or anyone who values stretching out freely.

In contrast, UK and US mattresses are sometimes built for more compact spaces, especially in urban settings. However, this becomes a challenge if you’re used to a certain size and are trying to match it when shopping locally in Perth.

Choosing the Right Mattress Material

Now that you know how mattress sizes differ, let’s talk about comfort. Choosing the right material is as important as picking the right dimensions. If you're looking for something breathable, supportive, and eco-conscious, a latex mattress in Perth can be an ideal option.

Latex mattresses are especially popular because:

  • They offer natural resistance to dust mites and allergens.
  • They provide excellent spinal support.
  • They are durable and maintain shape for years.
  • They stay cool in warm climates like Perth.

When paired with the correct size, a latex mattress can significantly improve sleep quality, posture, and even back pain relief. Just make sure to buy one that fits your Australian bed base—don’t assume a US King will match an Aussie King.

Key Tips Before Buying a Mattress in Australia

Here are a few things to keep in mind:

  1. Measure Before You Buy: Always check your bed base size before purchasing a mattress, especially if you’ve imported it or inherited it from another country.
  2. Stick to Local Sizing: If you're in Perth, it’s smart to choose a mattress made according to Australian standards for perfect compatibility.
  3. Go for Trusted Materials: Whether it’s comfort or durability you're after, a latex mattress in Perth can offer long-term support and peace of mind.
  4. Think Ahead: Don’t just think about your current needs. Consider future factors like family expansion, moving homes, or changing bed frames.

Conclusion: Get the Right Size and Comfort with DuuDuu

Understanding how mattress sizes in Australia compare to the US and UK can save you from costly mistakes and discomfort. While dimensions vary across regions, what truly makes a difference in sleep quality is choosing the right material and fit.

If you're looking to upgrade your sleep with a latex mattress in Perth, make sure you select one that meets Australian sizing standards and comfort expectations. DuuDuu offers a thoughtful collection of mattresses tailored to Aussie needs—designed for real homes, real bodies, and real rest.