What are the sizes of a queen mattress?

If you’re trying to work out queen mattress size before buying, here’s the short answer: a standard Australian queen mattress measures 153cm wide × 203cm long. That single fact solves most of the confusion, but it’s really only the starting point  the number that matters more is whether that size actually suits your bedroom, your sleeping habits, and whoever’s sharing the bed with you.

This guide is built for Australian shoppers, not US or UK ones, so every measurement here reflects what you’ll actually find on a mattress tag at an Australian retailer. We’ll walk through exact queen mattress dimensions, how much room you need to fit one comfortably, how a queen stacks up against a double and a king, and a practical checklist to run through before you buy.

What are the  sizes of a queen mattress in Australia?

A standard Australian queen mattress is 153cm wide by 203cm long. In older imperial terms, that’s roughly 5 feet wide by 6 feet 8 inches long. It’s the size most Australian queen bed frames, queen sheets, and queen quilt covers are built around, so as long as your mattress matches this figure, everything else in the bedroom lines up without guesswork.

Queen mattress dimensions in cm and inches

• Width: 153cm (60.2 inches)
• Length: 203cm (79.9 inches)

How does the Australian queen compare internationally?

If you’ve seen US or UK sites listing “queen” as 60 × 80 inches, that’s essentially the same footprint as the Australian queen  the two markets converged on almost identical dimensions, even though the terminology and marketing around it differs. Where things do vary more is with UK “small double” and “king” naming conventions, which don’t map cleanly onto Australian sizing at all. If you’re shopping locally, stick to the cm figures above rather than converting from overseas listings  bedding and frames sold here are built to the AU standard.

Once you know the number, it’s worth browsing the queen mattress range to see how that 153 × 203cm footprint translates across different comfort levels  firm, medium, memory foam, and pocket spring options all share the same base dimensions.

Australian Mattress Size Chart (Quick Reference)

Notice the jump from double to queen: it’s not just 15cm wider, the queen is also 15cm longer. That extra length is often the bigger difference in real life a double can feel short for anyone over about 180cm tall, while a queen gives taller sleepers proper legroom.

How Big Is a Queen Mattress, Really?

Numbers on a page don’t always translate to a feel for the space. Here’s what 153 × 203cm actually means once you’re lying on it.

For one person, a queen is generous  you get roughly the same width as two single mattresses side by side, minus a little, which means plenty of room to stretch out, change positions through the night, and use one side for reading or laptop time without disturbing the mattress.

For two people, each sleeper gets about 76cm of width  similar to having your own single mattress each. That’s enough personal space for most couples, though restless sleepers or anyone sharing with a larger dog or a toddler who migrates into bed at 3am might still find it tighter than they’d like.

Taller sleepers are well covered  203cm of length comfortably fits people up to around 195cm tall with room to spare, which is one reason a queen is often chosen over a double even by single sleepers who don’t strictly need the extra width.

One distinction worth flagging: mattress dimensions are not the same as bed frame dimensions. A queen bed frame is usually a few centimetres larger than the mattress itself to allow the mattress to sit inside the frame’s rails properly, and headboards add extra depth to the room footprint that the mattress size alone won’t tell you.

What Size Room Do You Need for a Queen Bed?

Minimum room size

As a practical minimum, aim for a room at least 3.3m × 3.3m. That fits the mattress with narrow but workable clearance to walk around it and open a wardrobe door. It’s tight, but it works for a spare room or a compact main bedroom.

Ideal room size

For a room that actually feels comfortable  space for bedside tables, a chest of drawers, and enough clearance to make the bed without shuffling sideways  3.6m × 4m or larger is a much better target. This gives you roughly 60–75cm of clearance on the sides and foot of the bed, which is the general rule of thumb furniture stores use when planning layouts.

When a queen might be too big for the room

If your bedroom is genuinely small  a lot of older Sydney apartments and terrace houses have second bedrooms under 3m wide  a queen can end up dominating the room to the point where there’s barely space to walk past it. In that case, a double mattress is worth considering instead. You lose some width, but you gain real floor space, which matters more than people expect until they’re actually living with a bed jammed against three walls.

Queen vs Double Mattress Which One Actually Fits?

This is the comparison most people searching for queen mattress size are really trying to answer, especially if they’re upgrading from a double they’ve had for years.

The extra 15cm in each direction sounds modest until you’re sharing the bed  a double gives each partner only about 69cm of width, noticeably tighter than the queen’s 76cm per person. If you’re currently on a double as a couple and finding it cramped, the queen upgrade solves that directly. If you’re a solo sleeper in a smaller room, the double is often the more sensible fit  you’re not paying for space you won’t use, and it’s easier to fit into a compact bedroom or a home office that doubles as a guest room.

Queen vs King Mattress  Which Is Right for You?

The length is identical between queen and king  the difference is purely width. A king adds 30cm across, which is a meaningful jump if you or your partner move around a lot at night, but it also demands a noticeably bigger room and, usually, a bigger budget. For most Australian main bedrooms, queen remains the practical sweet spot; king becomes worth it once room size stops being the limiting factor. We’ve covered this comparison in more depth in King vs Queen Bed Frame: Which Size Is Right for Your Bedroom? if you want to weigh it up further.

Queen Mattress Buying Checklist

Before you order, run through this:

• Measure the bedroom — width and length, not just “it looks big enough”
• Measure the existing bed frame if you’re only replacing the mattress, not the frame
• Confirm mattress thickness — anywhere from 20cm to 35cm depending on foam, pocket spring, or hybrid construction; thickness affects sheet depth but not the 153 × 203cm footprint
• Check delivery access — stairwells, lift size, and hallway width matter more in apartments and older Sydney homes than most people expect; a rolled mattress-in-a-box is easier to get up a narrow staircase than a traditional spring mattress
• Consider sleepers and pets — one person, a couple, or a couple plus a dog that claims a third of the bed all point to different size decisions
• Set a realistic budget and check what’s included  some retailers offer bed and mattress package deals that work out better value than buying frame and mattress separately
• Protect the investment — a mattress protector sized to queen dimensions from day one saves a lot of hassle later

Frequently Asked Questions

What is the standard size of a queen mattress in Australia?

153cm wide × 203cm long.

Is a queen mattress bigger than a double?

Yes , 15cm wider and 15cm longer than a standard Australian double.

Is a queen mattress suitable for two people?

Yes, comfortably for most couples, giving each person roughly 76cm of width.

How big should a bedroom be for a queen bed?

At least 3.3m × 3.3m as a minimum, with 3.6m × 4m or larger recommended for a comfortable layout with furniture.

Are all queen mattresses the same size?

The mattress dimensions are standardised at 153 × 203cm in Australia, but thickness varies by brand and construction, so always check the specific product listing.

What’s the difference between a queen and king mattress?

Width only  both are 203cm long, but a king is 30cm wider at 183cm.

Conclusion

A standard Australian queen mattress measures 153cm × 203cm  wider and longer than a double, narrower than a king, and generally the best all-round fit for couples and main bedrooms once the room can accommodate it. The right choice ultimately comes down to your room size, who’s sleeping in it, and how the mattress footprint compares to the bed frame and clearance space around it. Measure first, then decide  it’s the one step that prevents most sizing regrets.