Single Size Mattresses - See All Styles Online

Supportive and Comfortable High Quality Single Mattresses

They may be the smallest size bed mattress you can buy, but single mattresses can be just as big on high quality design features as king size mattresses! A good night’s sleep is crucial to good health, so even if the dimensions are small choose a single mattress which delivers big things when it comes to comfort and support.

What size is a single mattress?

There are three single mattress sizes:

Single Mattress Size

The standard single mattress size measures 91.5cm wide x 190cm long, narrower than a double bed but the same length. Single beds are designed for solo sleeping.

King Single Mattress Size

A king single mattress provides a little more sleeping space than a single so they can be a good option for big children or guest rooms.

A king single mattress measures 105.5cm wide x 203cm long, so it is both wider and longer than a single bed. A king single is actually longer than a double bed mattress - the same length as a queen mattress and a king size mattress - so it provides plenty of length for tall kids or adults sleeping solo.

Single Extra Long Mattress

Long singles combine the dimensions of singles and king singles. They measure 91.5cm wide (the same as a single mattress) and 203cm long (the same as a king single mattress). Long singles are great for small bedrooms where you need the length for a tall child or an adult but don’t have the space for a wider bed.

How thick is a single mattress?

The thickness - described by mattress manufacturers as height or depth - of a single bed mattress will vary quite significantly depending on the specific designs available within each leading brand mattress collection. For example:

You’ll find an Orthokinetic Arlo Medium single mattress is 30cm deep while the Orthokinetic Apollo Plush single mattress is 35cm deep.
The Perfect Balance Haven Firm is a Sealy single mattress which measures 22cm deep, while the Sealy Posturepedic Elevate Supreme Medium single mattress is 33cm deep.
Ideal for folding beds, spare beds in a bunk bed and trundle beds, Dunlop offer different thicknesses in their foam mattress range. The Dunlop Posturefoam is 14cm deep and the Dunlop Posturefoam 12cm deep.

The thickness of King Single mattresses and Single Extra Long mattresses vary the same as single bed mattresses. If you want to create more thickness to your King Single Mattress, browse our range of mattress protectors and overlays to discover memory foam and gel King Single Mattress Toppers, also available in single bed, double bed, queen bed and king bed sizes.

Single Mattresses For Kids

While we may be tempted to buy a lesser quality single mattress because kids will outgrow a single bed, in fact it is important for growing children to have good quality mattress bases. Why?

To support their spine.
To create good sleeping experiences and habits.
To support their developing immune systems with a good night’s sleep every night.

When choosing a single mattress for any of the exciting beds in our kids single bed range, look for memory foam or pocket spring mattresses, with high density foam suitable for sleepover guests in trundle beds or spare bunk beds.

If you want to buy a high quality mattress your child won’t outgrow, consider king single beds to provide that extra width and length for comfortable solo sleeping at any age.

What is the best single mattress for kids?

If you like a firm, medium or plush mattress to contour to your body, chances are your kids do too. Spinal support and comfort preferences are just as important to kids as they are to us. So there isn’t one ‘best single mattress for kids’ because it’s an individual thing which varies according to weight, height, preferred sleeping position and desired comfort level.

You’ll find a wide range of leading brand single mattresses to prevent tossing and turning and provide your growing children with all the support and comfort they need, from plush to firm.

Some of our popular single mattresses for kids include:

The affordable Dream Elegance Bliss single mattress with a Bonnell pocket spring system.
The highly popular Sealy Singles Bounty - a premium comfort pillowtop mattress with innovative technology and comfort layers.
The Posturepedic Marley Medium, fully Australian made with advanced comfort features.

With so many to choose from, there are sure to be single mattresses to entice your children into bed and keep them there all night long!

Do two single mattresses make a double?

One or two single mattresses are the same length as a double, because both single and double beds are 190cm long, but two single bed mattresses combined are wider than a double. A single mattress is 91.5cm wide. Two single mattresses would create a combined width of 183cm. A standard double bed mattress is 138.5cm wide, so two single bed mattresses together are wider.