Australia Bed Sizes & Mattress Dimensions Guide

SHARE

Share on facebook
Share on twitter
Share on linkedin

It’s Time to Buy a new mattress!

Picking the appropriate bed and mattress size for your space is an important long-term decision that should be carefully considered. So we have put together a comprehensive guide to find a mattress that fits the size of your bed as well as needs. 

Keep in mind that the measurements below are specific to the Australian market.

Mattress Sizes Chart Australia (AU)

For reference, the average height of Australian men is 175.6 cm (5 ft 9 in) and Australian women is 175.6 cm (5 ft 9 in).

Size NameDimensions (cm)Dimensions (Feet/Inch)
Super King203 x 203 cm6’8″ x 6’8″ (80″ x 80″)
King183 x 203 cm6’0″ x 6’8″ (72″ x 80″)
Queen153 x 203 cm5’0″ x 6’8″ (60″x 80″)
Double138 x 188 cm4’6″ x 6’2″ (54″x 74″)
King Single107 x 203 cm3’6″ x 6’8″ (42″ x 80″)
Long Single92 x 203 cm3’0″ x 6’8″ (36″ x 80″)
Single (Or Twin)92 x 188 cm3’0 x 6’2″ (36″ x 74″)
Baby Cot69 X 130 cm2’3” x 4’3” (27″ x 51″)
Australia Bed Mattress Size Chart

Standard Australian Bed and Mattress Dimensions

One of the first steps while choosing a mattress is making sure it matches the size of your bed frame. Also, consider the size of your bedroom to make sure the bed is the right size for your space.

1) Super King size bed & mattress dimensions

Super King size bed & mattress dimensions

A super king bed and mattress is 203 cm wide and 203 cm long, equivalent to 6ft 8in by 6ft 8in in imperial measurements. This is by far the largest Australian mattress size available, providing the most luxurious space. And if you value a great amount of breathing and wiggle room while you sleep, or have kids sneak into your bed early in the morning, the super king provides the type of space you desire.

  • Best mattress for: 2 adults with extra breathing room, as well as pets or children.
  • Recommended room size: 12ft wide by 12ft long.
  • Total area:  4.12 m²

Lengthwise super king mattress is the same as a king or queen mattress, but it’s 17 cm wider than a king mattress and 50 cm wider than a queen mattress.

2) King size bed & mattress dimensions

King size bed & mattress dimensions

A king bed and mattress is 183 cm wide and 203 cm long. This is equivalent to 6ft by 6ft 8in in imperial measurements. A king mattress and bed is the largest traditional bed available in Australian measurements. Though not as wide as the super king, it provides ample room for any standard mattress, making it great to stretch out and move around throughout the night.

  • Best mattress for: 2 adults with breathing room or 1 adult active sleeper who values extra breathing room.
  • Recommended room size: 12ft wide by 12ft long.
  • Total area:  3.71 m²

King vs. Queen

The king-size bed is the same length as a queen but about 15 cm wider than a queen-sized bed. If you and your partner are looking for a little extra room to move around during the night or just want a luxurious feel to your bed, then king might be better. While marginally shorter than a king (width-wise), a queen is still an excellent choice for couples or adults who’re a bit space-conscious.

3) Queen size bed & mattress dimensions

Queen size bed & mattress dimensions

Queen sized beds are the most popular size in Australia. It’s marginally smaller than a king (15 cm width-wise), so it’s perfect for couples who want to save on space without sacrificing too much comfort and small bedrooms.

In metric units, a queen size bed and mattress is 203 cm wide and 203 cm long. In imperial units, this bed measures 5ft wide by 6ft 8in long. A queen bed and mattress is perfect for a single active sleeper and works well for two people. A single sleeper would comfortably enjoy 153 cm of sleeping space, while two sleepers would have about 75 cm of space each.

  • Best mattress for: 1 single active sleeper or 2 adults with some breathing room.
  • Recommended room size: 10ft wide by 10ft long.
  • Total area:  3.10 m²

Queen vs. Double

A Queen bed is 15 cm longer and 15 cm wider than a double bed. So if you’re looking for a little extra legroom, or are taller than average, then a queen might be the better choice. If you have a small bedroom and need to save some space, opt for a double. That said, a double mattress can very much sleep two adults, but some couples prefer the extra breathing room of a queen.

4) Double size bed & mattress dimensions

Double size bed & mattress dimensions

A double mattress is also referred to as a full bed in Australia and a few places worldwide. It falls between a queen and single bed and comfortably sleeps one adult and can accommodate two if necessary.

A double bed and mattress is 138 cm wide and 188 cm long, equivalent to 4ft 6in by 6ft 2in on the imperial scale. The double mattress is the most common bed size and is mostly used by individual sleepers due to affordability. Double mattresses are 46 cm larger in width than a standard single bed, making them a great size for sleeping with a pet, body pillow, or an additional companion, if necessary. This is also a great bed and mattress when upgrading a teenager out of a single bed.

  • Best mattress for: One individual looking for a good price while maintaining comfort.
  • Recommended room size: 10ft wide by 10ft long.
  • Total area:  2.59 m²

Double vs Twin (or Single)

A double bed is bigger than a twin bed. A double bed is the same length as a twin or single bed but it’s 46 cm wider than a single. A twin or single bed can comfortably accommodate one adult or a kid. On the other hand, a double bed is more spacious and can comfortably accommodate two small adults or children. Single beds also come in King single size (wider and longer) or long single (longer) size but both of which are smaller than a double and are ideal for one adult, albeit some extra space.

5) King Single size bed & mattress dimensions

King Single size bed & mattress dimensions

In metric units, an Australian king single bed and mattress is 107 cm wide and 203 cm long. This is the equivalent of 3ft 6in by 6ft 8in in imperial measurement. King singles are great options for tall single sleepers who value length and breathability, as the king single is longer than a standard double bed and mattress. Make sure to find a bed frame that best accommodates the king single bed and mattress, as it does not usually match bed frames for a standard single frame. 

Joining two king single beds together results in a super king size bed. If two sleepers have different mattress preferences, this is a great option to accommodate both needs.

  • Best mattress for: One tall sleeper with room to move.
  • Recommended room size: 9ft wide by 10ft long.
  • Total area:  2.17 m²

King Single vs Long Single

The length of the King single and Long single bed is the same. The only difference is that King single beds are wider than Long single beds by 15 cm. Single sleepers who are taller than average or need extra legroom can go for a Long single bed while those who just need some extra space can opt for the King single.

6) Long Single size bed & mattress dimensions

Long Single size bed & mattress dimensions

A long single bed and mattress is 92 cm wide by 203 cm long in metric units. The sizing converts to 3ft by 6ft 8in in imperial measurements. Australian long single beds and mattresses are great options for tall sleepers who value length over width, as the king single is longer than a standard double bed and mattress. Make sure to find a bed frame that best accommodates the long single bed and mattress, as it does not always match bed frames for a standard single frame. Also, when you join two long single beds, you get a king size bed.

  • Best mattress for: One tall sleeper who does not move around a lot.
  • Recommended room size: 9ft wide by 10ft long.
  • Total area:  1.86 m²

Long Single vs Single (or twin)

Lengthwise, a long single bed is 15 cm longer than a standard single bed. The width of long single and single beds is the same. So if you’re looking for a bed for a tall kid or an adult, a long single is a better option. Single size beds are suitable for average-sized adults, kids and teenagers. 
 

7) Single (or Twin) size bed & mattress dimensions

Single size bed & mattress dimensions
Single and twin beds refer to the same bed size and are often used interchangeably. A single mattress is the smallest of all the adult mattress sizes except for the cot or crib mattress.
 
In imperial units, the single bed and mattress is 3ft wide by 6ft 2in long, which is equivalent to 92 cm by 188 cm on the metric scale. This mattress is perfect for older children and teenagers as it is the smallest adult mattress on the Australian market. Single beds are great for bunks beds, college dorm rooms, and quaint bedrooms. For sleepers with little space or budget, the single mattress and bed is a great way of maintaining quality without needing the price or space for a larger mattress.
 
  • Best mattress for: Older children, teenagers, and college students.
  • Recommended room size: 9ft wide by 9ft long.
  • Total area:  1.72 m²

8) Baby Cot size bed & mattress dimensions

Baby Cot bed & mattress dimensions

A standard baby cot bed and mattress is 69 cm wide by 30 cm long. In imperial dimensions, the baby cot is 2ft 3in by 4ft 3in. As suggested, baby cots are the only mattress in the Australian market designed specifically for babies. These beds are the best fit for children between the ages of one and three. Baby cots are typically the same size as toddler beds; to save money, consider buying a baby cot that can later be converted into a toddler bed when your child gets older.

  • Best mattress for: Babies ages one to three.
  • Recommended room size: As this is the smallest option on the market, a baby cot fits comfortably into almost any bedroom size.

Questions to Ask Yourself When Purchasing a Bed:

  1. How many individuals are going to share the bed, including pets, if any?
  2. What is the age of the individual(s) sleeping in the bed?
  3. Do you value wiggle room, length, or both?
  4. What is the size of your bed frame? What mattress size would fit in that frame?
  5. Do you like a firm or soft mattress?
  6. How large is your bedroom?
  7. What is your budget? How much would you like to spend on a mattress? For cheaper mattress options in Australia, check this guide.
Reviewing these questions prior to purchasing a bed and mattress will make the selection process much easier. Reviewing the above bed and mattress dimensions will also help to answer some of these questions for you and make the buying process easier.
James Lee

James Lee

James is the content director at WhatASleep, a certified sleep science coach from Spencer Institute and our in-house sleep product expert. Over three years, he's personally tested hundreds of mattresses. He likes to keep his reviews simple, objective, and straightforward so that the readers don't have to go through decision fatigue which is often the case while shopping for sleep products.

He hails from Sydney and has a journalism degree from the University of Queensland and an MBA from Melbourne Business School.

trophy-pick

Looking for a new mattress?

Check our Top Picks!

Leave a Comment

Your email address will not be published. Required fields are marked *