Cot

28cm x 52cm

Single
92cm x 188cm

King Single Size

Long Single

92cm x 203 cm
King Single Size

King Single
107cm x 204cm

Double

Double
138cm x 188cm

Queen

Queen
153cm x 204cm

King size

King
183cm x 204cm

Super King

Super King
204cm x 204cm

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Measurements & Dimensions

Choosing a mattress that complements your bed and your body makes a vast difference in your sleep quality. But, many buyers misjudge mattress dimensions and bring home one that’s too large or too small. It may have happened that you wanted a luxurious super king bed, but only a queen size will fit your bed frames in Australia. Hence, to avoid bed blunders, use this guide to find suggestions for mattress sizing and sleeping arrangement.

Cot mattress

28cm x 52cm

An Australian cot mattress (or baby mattress) comes in a standard size of 130 cm long and 69 cm wide. These mattresses are designed to fit a standard baby cot. However, cot mattresses are also available in other sizes, so if you wish to buy one, BetterBed suggests you confirm if the cot mattress fits the cot. 

The price of good cot mattresses usually ranges between $150-$500. 

Ikea Cot Mattress only $100 $77.26

Single Size Mattress

92cm x 188cm

Single bed dimensions are 92 centimetres wide by 188 centimetres long. Also known as a “twin” mattress, this is the smallest mattress size besides a baby crib. At 188 centimetres long, single beds are rarely comfortable for adults – measuring only  20 centimetres longer than the average Australian adult.

A single size bed is ideal for young children who have outgrown their cribs or need the freedom to move. It can work well for children until their early teenage years. Due to its size, a single mattress is also suitable for daybeds, bunk beds, and smaller guest rooms.

Eva Single Mattress only $900 $775

Long Single Size Mattress

92cm x 203 cm

Also known as Single XL and Single Extra Long, this mattress has a length of 203 cm and a width of  92 cm. Long single mattresses are ideal for tall people and for those individuals who love to stretch out during the night and like to have the entire bed all by themselves when they sleep. 

Even though a Single XL mattress is not a common choice for Australians, there are a number of great options that can look amazing in your bedroom. Also, with a mattress of this size, you get the opportunity to free up extra space in your room. The price range of a typical long single mattress is $400-$1500. Nevertheless, in some cases, the price can go over $1500 (especially due to the brand or type of materials used). 

Ergoflex long single size mattress

King Single Size Mattress

107cm x 204cm

King Single Size

King single mattress dimensions are 107 centimetres by 204 centimetres – measuring 15 centimetres wider and 16 centimetres longer than a standard single bed. These additional centimetres can make a difference in comfort and sleep quality, particularly for taller children. Many single bed frames can fit a king single mattress, but make sure to measure your frame before buying.

A king single bed is suitable for sleepers who need more length than a standard single. Mainly, for older children or those experiencing growth spurts. Another good place to put a king single bed is in a guest room – it makes visitors more comfortable without sacrificing space. That’s why this size mattress is commonly used in university dormitories.

 

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Double Size mattress

138cm x 188cm

Double

Double bed dimensions are 138 centimetres by 188 centimetres, or 46 centimetres wider than a single size mattress. At 188 centimetres, this mattress is the same length as a single size bed and maybe too short for some adults. However, the extra width gives solo sleepers room to stretch out. Sharing this mattress size with a partner would be difficult, as each sleeper gets just 69 centimetres of individual space – less than a single size bed.

At 138 centimetres wide, a double size mattress is best for a solo sleeper. Two people may find it comfortable for a short period of time, but it would be cramped and difficult to sleep in certain positions. That’s why this mattress size is ideal for older children and guests. Children and teenagers grow quickly, and parents can choose a double bed over a single bed to prevent replacing mattresses for a significant time. Guests may also be more comfortable on a double mattress since it gives more room to sit, organise, and move.

Noa Double Mattress only $999 $649 (Save $350)

Queen Size mattress

153cm x 204cm

Queen

Queen mattress dimensions are 153 centimetres by 204 centimetres – 15 centimetres wider and 16 centimetres longer than a double bed. One of the most popular bed sizes, a queen mattress is spacious enough for two sleepers. This additional sleeping surface means better sleep for tall individuals and partners. Yet, with approximately 77 centimetres of personal space, each adult has less room than they would on a single size mattress.

A queen-size bed is a good pick for solo sleepers who like a lot of room to snooze. It’s longer than a double bed, so tall individuals can rest without hanging their feet off the bed. However, this mattress size also works for couples who need less sleeping space or who want more floors. space in the bedroom.

Koala Queen Mattress only  $1050

King Size Mattress

183cm x 204cm

King size

King size bed dimensions are 183 centimetres by 204 centimetres, giving an additional 30 centimetres of space over a queen bed. Although a king mattress is the same length as a queen, the extra width makes all the difference for partners. It gives an optimum amount of personal space without going overboard on a super king size. Plus, a king mattress has almost the same dimensions as two king single beds combined, so consider this a flexible option for a guest room.

A king-size bed is the best mattress for partners who want more sleeping space. Before buying this bed, use the mattress dimensions to gauge whether it fits in the room and through the doors. Consider any stairwells and sharp corners. When ordering a mattress online, it often comes compressed and shipped in a box. Yet, this is not always the case with in-store purchases. Remember to check with the mattress company or delivery service about any moving assistance.

Ergoflex King Mattress only $1349 $903. (Save $445.17 with code ‘SLEEP’)

Super King Size Mattress

204cm x 204cm

Super King

Super-king mattress dimensions are 204 centimetres by 204 centimetres, making it the most spacious bed available. This size is 21 centimetres wider than a king-size bed and offers plenty of individual space for partners. The additional width gives the mattress a square shape – a unique look for larger bedrooms. Partners snoozing on a super king mattress may not even notice the other is there since each adult has 102 centimetres to themselves.

A super king-size bed is perfect for couples who want a luxurious amount of space. In a larger bedroom, it fills up the room and creates a cosy atmosphere. Even families with children may enjoy this bed since there is enough sleeping room for one or two kids. However, this mattress size requires extra large bedding. Make sure to check what’s available near you before saying yes to this spacious mattress.

Ecosa Super King Mattress only $1499 $1124.25 (Save $374.75)

Recommended Read –Best Down Pillows Australia

Other Type Of Beds

1. Bunk beds:

Bunk beds are a great option for your kids’ bedroom. They are designed to have two individual beds assembled, one on top of the other. You can consider buying two cot mattresses to acquire this structural design which will also leave space in their bedroom for other activities or maybe for setting up study tables. 

2. Trundle beds

You can go for a trundle bed if you don’t want to buy extra beds for guests or sleepovers. These beds (sometimes collapsable) can easily be stored under an existing bed. No wonder they are also called under beds!

3. Single over double bunk beds

Similar to the traditional bunk beds, single over double bunk beds are also becoming a trend since they over the single bed at the bottom and a double bed at the top or vice versa. 

Still confused? Check out our best bed frames and affordable Australian mattresses to choose what suits you the best. 

Australian Bed sizes

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