What are the exact dimensions of a double mattress in Australia?

An Australian standard double mattress measures 138 cm wide by 188 cm long. Worth noting that this is shorter than a queen (203 cm), so if you're on the taller side it's something to factor in.

Can two adults comfortably sleep on a double mattress?

Two adults can share a double, though it works out to about 69 cm of sleeping width per person. Couples who move around a lot during sleep may find a queen size more comfortable. For occasional guest use, a double is perfectly suitable.

Is a double mattress the same as a full-size mattress?

Yes. In Australia, 'double' and 'full' are used interchangeably. Both refer to the 138 x 188 cm size. If you're shopping from an international retailer, just confirm the measurements match Australian standard sizing.

What's the difference between a double and a queen mattress?

A queen (153 x 203 cm) is both wider and longer than a double (138 x 188 cm). The queen gives you 15 cm more width and 15 cm more length, making it a noticeably more spacious option, particularly for couples or taller sleepers.

Do double mattresses provide good back support?

Absolutely. Support quality comes down to the mattress construction, not the size. Double mattresses are available in high-density foam and pocket spring options with zoned support systems designed to maintain healthy spinal alignment.

How often should I replace my double mattress?

Most quality double mattresses last around 8 to 10 years. Signs it's time for a replacement include visible sagging, body impressions deeper than 3 cm, or regularly waking up with stiffness or discomfort.

What are the exact dimensions of a king size mattress in Australia?

An Australian standard king size mattress measures 183 cm wide by 203 cm long. That's 30 cm wider than a queen (153 x 203 cm), which is a significant difference when it comes to sleeping space.

Is a king size mattress worth it for couples?

For couples who want maximum sleeping space and minimal disturbance through the night, a king is well worth it. With around 91.5 cm each, both partners essentially have the equivalent of their own single mattress worth of personal space, while still sharing the same bed.

What's the difference between a king and a super king mattress?

A standard king measures 183 x 203 cm, while a super king is typically 203 x 203 cm, making it a true square. Super kings require purpose-sized bed frames, linen, and more floor space. Standard kings are much more widely available across a broader range of styles and price points.

What type of king size mattress is best for couples with different sleep preferences?

Hybrid models that combine pocket springs with foam comfort layers tend to work well for couples with different preferences, as they offer a balanced mix of responsiveness and pressure relief. If the difference in firmness preference is significant, a split-comfort king with different feels on each side is also worth looking into.

Can a king size mattress be used on a queen bed frame?

No. A king mattress at 183 cm wide is 30 cm wider than a queen frame (153 cm) and won't sit correctly on it. You'll need a purpose-built king size bed frame or ensemble base.

How heavy is a king size mattress?

King size mattresses generally weigh between 40 and 70 kg depending on the materials used. Pocket spring models with foam layers tend to be on the heavier end. Having two people available for setup is a good idea, and delivery and installation services are often available if needed.

Buy King Single Mattresses | Chiropractic Approved

Buy King Single Size Mattress Online

A king single mattress measures 107 x 203 cm, which is about 16 cm wider than a standard single and one of the most versatile sizes available in Australia. It's the go-to choice for growing teenagers, guest rooms, and adults who want more personal sleeping space without stepping all the way up to a double.

At Chiro Care Mattresses, our king single range is built to deliver genuine support for your spine and sleeping posture. Each mattress in this collection is made with premium comfort layers and supportive cores, giving you the restful, restorative sleep your body needs.

Why Choose a King Single Mattress?

The king single is a smart size upgrade. It gives you noticeably more sleeping width than a standard single but still fits comfortably in smaller bedrooms, student accommodation, and guest rooms. Here's who it suits best:

Teenagers who have outgrown a single but don't yet need a double
Adults in smaller rooms or studio apartments who need extra length and width
Guest bedrooms where space is limited
Bunk beds and loft beds designed for king single dimensions
Anyone who moves around during sleep and needs more room to stretch

Spinal Support in a King Single Mattress

The right king single mattress does more than give you space. It supports your entire body from head to heel. At Chiro Care Mattresses, our king single mattresses feature individually wrapped pocket springs, high-density foam layers, and pressure-relieving comfort zones designed to keep your spine in natural alignment regardless of your sleeping position.

Whether you sleep on your back, side, or stomach, the correct level of support ensures your hips and shoulders are properly cushioned and your lower back is never left unsupported. This is especially important for growing teenagers whose spinal development is still ongoing.

Mattress Types Available in King Single

Pocket Spring King Single

Individually wrapped springs that respond independently to body movement, reducing disturbance and providing zoned support across different body areas.

Memory Foam King Single

Conforms to your unique body shape, relieving pressure points across the shoulders, hips, and lower back. A great option for side sleepers.

Gel Foam King Single

Combines the contouring of memory foam with cooling gel technology to help regulate body temperature throughout the night.

Pillow Top King Single

An extra comfort layer sewn into the top of the mattress for a cushioned, luxurious feel while still maintaining the support underneath.

How to Choose the Right King Single Mattress

Firmness level: Side sleepers generally do well with a medium feel, while back and stomach sleepers often prefer medium-firm to firm.
Weight and build: Heavier sleepers need deeper, denser support layers to prevent premature sagging.
Sleep temperature: If you tend to sleep hot, look for gel foam or open-cell foam options with breathable covers.
Room size: A king single fits comfortably in rooms from 2.8m x 2.8m and larger.
Base compatibility: Check your existing bed base or ensemble, as king single frames are widely available and pair with all standard slat and solid base styles.

King Single Mattress FAQs

What are the exact dimensions of a king single mattress?

A standard Australian king single mattress measures 107 cm wide by 203 cm long. This is approximately 16 cm wider than a regular single (91 x 188 cm), which makes a real difference in sleeping comfort.

Is a king single mattress good for adults?

Yes. While it's popular for teenagers and guest rooms, plenty of adults sleeping alone in smaller rooms find a king single perfectly comfortable. At 107 cm wide, it offers adequate space for a single adult sleeper.

Will a king single mattress fit a standard single bed frame?

No. A king single mattress requires a king single bed frame or base, as it's too wide to fit a standard single (91 cm) frame. Always confirm your frame dimensions before purchasing.

What's the difference between a single and a king single mattress?

A single mattress measures 91 x 188 cm, while a king single measures 107 x 203 cm. The king single is both wider and longer, giving you noticeably more sleeping space. This is particularly useful for taller people or those who like to spread out.

Do king single mattresses come with spinal support features?

Many do. At Chiro Care Mattresses, our king single range includes options with pocket spring systems, high-density foam cores, and zoned support layers, all designed to promote healthy spinal alignment while you sleep.

How long should a king single mattress last?

A quality king single mattress will typically last 8 to 10 years with proper care. Rotating your mattress every 3 to 6 months and using a mattress protector will help maximise its lifespan.