What are the standard Australian mattress sizes you need to know?

If you’re buying a mattress in Australia—or importing one—remember: sizes vary by country. To avoid returns, ill-fitting bedding, and visible gaps, always match the mattress to the size standard where it will be used. That means checking the standard Australian mattress sizes before you buy.

In Australian stores you’ll commonly find Single, Long Single, King Single, Double, Queen, King and Super King sizes. These cover everything from single and king single beds for kids and teenagers to larger options for couples and families. They also include practical guest room bed sizes that work well in smaller spaces.

Knowing the name of each size is useful, but the real key is the measurement: width and length in centimetres. Measure your bed frame and bedding first, then compare to the product spec so sheets, protectors and the mattress itself line up correctly. This simple check keeps your setup neat and comfortable.

MetiaSleep is an Australian-owned sleep brand that makes mattresses to fit these standard dimensions. Their range aims to deliver quality sleep without unnecessary extras, helping customers get perfectly fitted mattresses that sit flush on compatible frames and don’t leave awkward gaps.

Below you’ll find a clear size chart (centimetres first, inches in parentheses), plus practical tips to choose the right size mattress for your room and sleeper. Before you scroll, take a quick look: measure your frame, note mattress depth for bedding pockets, and compare the exact product dimensions to your measurements.

Australian mattress size chart in centimeters and inches

Shopping across markets can get confusing fast. This chart gathers the most-used standard australian mattress sizes in one place so you can compare centimetres first (inches in parentheses) at a glance.

Tip: Always match the listed length and width to your frame and bedding—small shifts matter when you want perfectly fitted mattresses.

Australian mattress size chart (cm and in)

• Cot mattress: 69 cm x 130 cm
• Single: 92 cm x 188 cm (92 cm x 190 cm is sometimes shown) — 36 x 74 in
• Long Single / Single XL: 92 cm x 203 cm — 36 x 80 in
• King Single: 107 cm x 203 cm — 42 x 80 in
• Double: 138 cm x 188 cm (some retailers list 137 cm x 190 cm) — 54 x 74 in
• Queen: 153 cm x 203 cm — 60 x 80 in
• King: 183 cm x 203 cm — 72 x 80 in
• Super King: 203 cm x 203 cm — 80 x 80 in

Note: Retailers sometimes round or publish slightly different numbers (for example, 92 x 188 vs 92 x 190). Always confirm the exact product dimensions on the product page or manufacturer spec sheet before ordering bedding or a bed frame.

Standard Australian mattress sizes and dimensions

Start with how many people will sleep on the bed and the shape of your room, then confirm the exact numbers. For many homes, single and king single beds work well for kids’ rooms, guest spaces and thinner rooms where walkways matter.

For couples, consider queen size mattress and king size bed measurements—width often changes perceived comfort more than length when both sleepers share the bed.

Quick imperial conversions for international or imperial-familiar readers

If you find imperial labels helpful, here are common U.S. equivalents for quick reference (metric is the Australian standard):

• Twin (approx.): 99 cm x 191 cm
• Twin XL (approx.): 99 cm x 203 cm
• Full (approx.): 137 cm x 191 cm
• California King (approx.): 203 cm x 249 cm

Use these only as a guide—Australian names and dimensions differ from U.S. labels. Always check the exact centimetre measurements for the mattress you're buying.

Why dimensions can look slightly different across sources

You may see the same Australian label with small changes—Single at 92 x 188 vs 92 x 190, or Double at 138 x 188 vs 137 x 190—because of rounding, measurement conventions, or retailer formatting. Those small differences can affect fitted sheets, mattress protectors and how a mattress sits on a base.

To avoid surprises, measure your bed frame’s internal sleeping area, check the mattress product spec (centimetres first), and select bedding with a pocket depth matched to the mattress height.

How to choose the right standard Australian mattress size for your sleeper and room

Choosing the right mattress size starts with two simple things: how you sleep and the room’s layout. A practical master bedroom setup balances comfort with clear walking space, while guest rooms should prioritise flexible guest room bed sizes that fit a variety of visitors.

Begin by measuring the room and noting where doors, wardrobes and drawers open. Use those measurements to check which size mattress fits without crowding the room or blocking access to furniture.

Room sizing guidelines for better layout and flow

Use these room guidelines as a starting point. Plan for at least 60 cm (approx. 24 in) of clearance on the primary access side so you can move comfortably and open drawers and doors.

• Single (92 x 190 cm): room guideline 2.5 m x 3.0 m; best for children, younger teenagers, smaller-framed adults, and bunk beds
• Long Single (92 x 203 cm): room guideline 2.6 m x 3.2 m; ideal for older/taller teens, taller solo adults, and versatile guest rooms; also useful for split setups
• King Single (107 x 203 cm): room guideline 2.6 m x 3.2 m; good for teens, taller solo sleepers, and guest bedrooms
• Double (137 x 190 cm): room guideline 3.2 m x 3.4 m; suits couples who don’t need lots of extra sleeping space
• Queen (153 x 203 cm): room guideline 3.0 m x 4.0 m; a common choice for couples and families who occasionally share the bed
• King (183 x 203 cm): room guideline 3.2 m x 4.2 m; offers extra width for partners and is good for taller sleepers (see length guidance below)
• Super King (203 x 203 cm): room guideline 3.5 m x 4.5 m; provides maximum shared space for family lounging and large bedrooms

Sketch a quick floor plan to visualise how a chosen bed footprint fits with bedside tables and walkways. This prevents tight spots and helps you decide between a double, queen or king without surprises.

Height and comfort considerations

Most Australian mattresses fall in the 25 cm to 36 cm height range, with many models around 30 cm. Mattress height affects how the bed looks with a headboard, how easy it is to get in and out of bed, and the bedding pocket depth you'll need.

For a guest room, a medium-height mattress works well; in a main bedroom choose a height that suits your routine and the frame height so you can sit with feet on the floor comfortably.

Mattress height and sheet fit

Taller mattresses need deeper fitted-sheet pockets. When buying bedding, check both the mattress dimensions and the sheet pocket depth so corners stay secure. Choosing standard sizes makes it easier to find sheets that fit—whether you pick a queen size for a shared room or a compact option for a smaller space.

Quick checklist: measure your room → measure the internal mattress area of your frame → allow at least 60 cm clearance on the main access side → check mattress height for sheet pocket depth. Following these steps helps you pick the right mattress for your space and sleeping needs.

Standard Australian mattress sizes, Perfectly fitted mattresses

If you’re buying an Australian mattress from overseas or comparing international labels, remember: names can look familiar even when measurements differ. Getting the right size mattress prevents gaps, shifting sheets and an unfinished look—so always confirm centimetre dimensions before you buy.

Why “standard Australian dimensions” matter for a gap-free fit

Mattress sizes vary by country, and the same label can mean different widths or lengths. Even small differences—like 188 cm versus 190 cm—can create a visible gap at the head or foot of the bed, cause sheets to ride up, or make protectors sit loose. Measure the internal sleeping area of your frame and compare it to the product spec to ensure a neat, squared setup.

MetiaSleep sizing philosophy for seamless compatibility

MetiaSleep is an Australian-owned sleep brand that builds mattresses to standard Australian dimensions so you can expect consistent sizing across their range. Their goal is to provide quality sleep solutions without unnecessary extras; the focus is on reliable fit and comfort so you can find perfectly fitted mattresses for each room.

The Metia Comfort Line comes in versatile sizes suited to everyday rooms, while the Metia Luxury Line offers the same sizing discipline with upgraded finishes. Before ordering, check the exact centimetre dimensions on the product page and, if needed, contact customer support to confirm model-specific specs.

Where perfectly fitted mattresses make the biggest difference

• Couples: A surface that’s too narrow or short can quickly reduce comfort. Choosing the right queen or king gives more sleeping space so partners can share the bed without feeling cramped.
• Taller sleepers: Length matters—options with a 203 cm length (Long Single, King Single, Queen, King) are better for taller adults who need full leg support.
• Split setups: Two King Singles (107 x 203 cm each) can sit side by side on a King frame (183 x 203 cm) to reduce motion transfer while maintaining a unified look—measure carefully, as tiny gaps can appear between mattresses and bases.
• Family lounging: Larger sizes like king and super king add extra space for shared mornings, reading and movie nights, making a big difference in relaxed living bedrooms.

Measure first, match sizes second: that simple approach ensures your mattress, sheets and bed frame work together for an attractive, gap-free result.

Popular comparisons: double vs queen mattress, queen size mattress dimensions, and king size bed measurements

When comparing standard australian mattress sizes, focus on width, length and how the chosen bed will change the feel of the room. The decision between a double, queen or king typically comes down to how much sleeping space you need, legroom for taller sleepers, and how much open floor you want for a tidy master bedroom setup.

• Double: commonly listed as 138 x 188 cm (sometimes 137 x 190 cm).
• Queen: 153 x 203 cm.
• King: 183 x 203 cm.

For the basic double vs queen mattress choice, the queen gives noticeably more width and length than a double, which can reduce nightly disturbances for couples and feel better for taller sleepers. A double remains a space-smart option for smaller rooms while offering more room than a single mattress.

The familiar “sweet spot” for many households is the queen size mattress dimensions of 153 x 203 cm. This size balances shared sleeping space and room footprint—use a 3.0 m x 4.0 m room as a guideline so you can keep walkways, nightstands and drawers functional.

Stepping up to king size bed measurements (183 x 203 cm) provides extra shoulder and elbow room while keeping the same 203 cm length as a queen, so the upgrade is mainly about width and extra space. For many couples that want more personal sleeping space, a king can make a real difference. If you need even more room for family lounging or very wide sleeping space, consider super king sizes.

Across mattress sizes, the right choice depends on who sleeps in the bed, the room’s layout, and whether this is a primary suite or a guest room. Larger sizes usually cost more and need a bigger room, so match the mattress to your lifestyle: couple or solo, taller or average-height, and how much shared space you want.

Choosing MetiaSleep bed frames for standard Australian sizing and bedroom space saving

When planning your bedroom, account for the bed frame as well as the mattress — many frames are a few centimetres wider or longer than the mattress itself. MetiaSleep bed frames are built to suit standard Australian sizes, helping ensure a tidy fit between mattress and base.

Before you buy, measure the internal sleeping area of your frame and the available floor space. Allow at least 60 cm (approx. 24 in) of clearance on the primary exit side so the room feels comfortable and drawers and doors can open freely.

Think about support and daily use: choose a frame height that lets you sit with your feet on the floor, and select a sturdy platform or slat system to support the mattress. Many customers prefer upholstered gas lift beds for a combination of style, storage and easy access.

If you need storage, consider hidden storage bed frames or a button-upholstered gas lift frame to replace bulky dressers and free up floor space. For a classic look, upholstered frames with button detailing are a popular option that still aligns to standard bed sizes.

Quick measure-and-match checklist: measure the internal mattress area of your frame → compare those centimetre dimensions to the mattress product page → note mattress height to choose bedding pocket depth → allow extra room for frame overhang (commonly 5–12 cm). Following these steps helps you pick the right mattress and frame combination for your bedroom.