Single mattress size
Sealy MATTRESS range
Available in Single size
At Sealy, we offer a Single size in every model and price range, tailored to your needs and lifestyle. We also have a bed base designed to complement your mattress or form a Single ensemble.
Australian Single size mattress
At 91.5cm wide and 190cm long, an Australian Single size mattress is suitable for children and solo sleepers of all ages. We have a Single mattress in every range to meet all budgets and lifestyle needs.
The Single mattress is the smallest standard size in Australia. The closest options are the longer Single XL and King Single beds, or the wider Double size mattress.


SEALY PosturePEDIC
Why choose a Single?
Traditionally, Single mattress sizes have been a common option for children as they transition from a cot to a bed. However, single sleepers of all ages may enjoy the space-saving convenience and comfort of a Single.
The narrow size makes this option popular for small bedrooms and limited guest sleeping spaces. If the bed is intended for a particularly tall individual, you may wish to consider the longer Single XL or King Single sizes.
Otherwise, if you are looking for more room to stretch out, a Double mattress is the same length as a standard Single but much wider. It is also able to accommodate two people.
Sealy MATTRESS range
Australian mattress sizes comparison guide
We’ve created this bed and mattress size guide to help you find the perfect mattress size for your bedroom. See how the Single sizes fit you, your room and your needs.
AU Mattress Size | Width x length (MM) * |
Width x length (CM) * |
Width x length (Inches) * |
---|---|---|---|
Single | 915 x 1900mm | 91.5 x 190cm | 36 x 74.8" |
Single XL | 915 x 2030mm | 91.5 x 203cm | 36 x 80" |
King Single | 1055 x 2030mm | 105.5 x 203cm | 41.9 x 80" |
Double | 1385 x 1900mm | 138.5 x 190cm | 54.5 x 74.8" |
Queen | 1525 x 2030mm | 152.5 x 203cm | 60 x 80" |
King | 1835 x 2030mm | 183.5 x 203cm | 72.2 x 80" |
Super King | 2030 x 2030mm | 203 x 203cm | 80 x 80" |
*Due to the handmade nature of our products, there may be +/- 15mm difference in the final product from the size guide.
Sealy base range
The perfect partner for your mattress
Sealy mattresses are designed with a matching bed base in mind. Choose from a standard ensemble bed base, adjustable base or drawer storage option. Equipped with the latest technology, our bases deliver high performance and long lasting quality.

Designer base
Combine your mattress with a matching Sealy base that is designed to add support and longer lasting comfort.

Posturepedic SpaceSaver™
A convenient and modern storage solution underpinned by quality and durability.

Posturematic® Adjustable
A functional solution for modern bedrooms. Experience comfort at a new angle.
Mattress selector
Not sure what mattress is right for you?
Simply answer a few questions and we’ll recommend the right mattress based on your unique sleep profile. We will email you your customised results so you can take them in-store to a Sealy retailer near you.

Single mattress size FAQs
How big is a Single size bed Australia?
In Australia, a Single size bed is 190cm long and 91.5cm wide. The height of the mattress can vary depending on the comfort level (plush, medium, firm). If you have a bed frame, this should be taken into account when measuring required space.
What is single size in CM?
In Australia, a Single size mattress is 190cm long and 91.5cm wide. This is equivalent to approximately 75 x 36 inches.
How much bigger is a king single to a single?
In Australia, a King Single mattress is 140mm wider and 130mm longer than a Single size mattress.
What size is a single vs twin mattress?
Single and Twin are equivalent mattress sizes in Australia and the USA. The Twin size is slightly wider at 96.5cm, while the Single is 91.5cm wide in Australia.