Choosing the right mattress size shapes how well you sleep and how your space functions daily. It affects comfort, movement, and how easily you can make your bed in the morning.
Many people think the right choice comes down to measurements, but lifestyle often matters more than numbers. If you’re choosing a new bed, comparing mattress sizes in Australia will help you find what truly fits your family’s sleep routine.
We popped into the Bed store to compare all the different bed sizes in person. Seeing the Single, Double, Queen and King side-by-side really helped us understand how much space each one offers for our family.
Single and King Single: Compact, Smart, and Future-Ready
A single mattress measures 91.5 cm by 190 cm. It works well for both kids and adults. It offers enough length and width for comfortable movement. Its compact design also easily fits into smaller rooms while leaving space to move around the bed.
The king single measures 105.5 cm by 203 cm. It gives growing kids or solo adults more room without crowding the room. Choosing this early saves money later since it lasts through teen years and early adulthood. Some families even pair two king singles for a flexible guest setup that forms a split king when joined.
For tight spaces, lighter mattress sizes simplify moves through stairwells and elevators. That practicality often makes king singles the smart, long-term choice for city living.
You may refer to a comprehensive guide on to gain mattress sizes additional insight. Such resources often include detailed dimensions and helpful comparisons, helping you decide which size best fits your requirements.
Double: A Classic Option Losing Its Relevance
A double mattress measures 138.5 cm by 190 cm. It was once the standard size for Australian couples but has since lost ground to larger options. Many still prefer it for single adults and teenagers seeking good sleep.
The double suits multi-use rooms, such as a home office that doubles as a guest space. It’s affordable and widely available, so finding frames or sheets isn’t a hassle. That matters for short-term rentals and Airbnbs, where cost and convenience come first.
In older Australian homes with small bedrooms, the double mattress still makes sense. It leaves enough walking space and avoids making the room feel crowded.
Queen: Practical Comfort for Most Couples
The queen mattress, at 152.5 cm by 203 cm, comfortably fits most couples. It balances size, affordability, and availability. Bedding options are everywhere, and replacement parts like bed frames or headboards are easy to find.
Families often start with a queen bed for the master bedroom and later move it to a guest room after upgrading to a larger size. It’s spacious enough for two adults, but if a toddler or pet joins in, it might start to feel smaller.
Interior designers often recommend the queen mattress for balanced bedroom layouts. It leaves space for bedside tables and allows better air circulation, giving the bedroom space a lighter feel.
King: Generous Space and Better Sleep Independence
The king mattress measures 183.5 cm by 203 cm. It’s ideal for couples who like personal space or share their bed with children or pets. Each person has plenty of room to move without bumping into the other.
Sleep independence is one of the biggest advantages. A partner’s movement during the night doesn’t ripple across the mattress, which helps both sleep more soundly. It also supports better posture and alignment, improving overall sleep quality for couples.
Design-wise, a king-size bed acts as a focal point in modern Australian bedrooms. It fits nicely in larger homes and brings a sense of luxury while staying functional.
Super King: Family Co-Sleeping at Its Best
The Super King measures 203 cm by 203 cm. It’s the largest among mattress sizes in Australia and fits families who co-sleep or have multiple children. Parents who prefer to keep young kids close at night often find this setup more restful.
Australia’s growing ‘family bed’ trend supports bonding and simplifies night feedings or comfort checks. A super king provides enough room for everyone without elbows or knees clashing.
Before buying, consider logistics. Not every home can fit a super king through doorways or stairwells. Custom sheets and frames may also cost more, though modular systems or joining two king singles can work as alternatives. Zoned-support designs also help when sleepers have different firmness preferences.
Beyond Size: Choosing What Fits Your Family Best
Mattress dimensions shouldn’t only depend on how many people sleep on it. Lifestyle, home design, and future needs matter just as much.
Here’s what to think about before deciding:
Sleep companions: If children or pets often share your bed, consider upsizing.
Home layout: Large mattresses can dominate a room or block pathways.
Future plans: If you expect to move soon, a queen might fit more homes than a super king mattress.
Climate: Larger mattresses trap more heat, which matters in humid areas like Queensland.
Sustainability: Choosing a size that lasts long term avoids waste and replacement costs.
Some buyers choose based on budget alone, but a slightly larger mattress can extend its usefulness as a family grows. When comparing mattress sizes in Australia, consider how your sleeping habits might change in the next five years.
A quick self-checklist can help:
Do your kids often sleep beside you?
Do you live in a compact home?
Do you value extra storage around your bed?
Consider your room dimensions when planning furniture placement. Your answers often say more about what you need than the measurements do.
To Conclude
The right mattress size affects your sleep and influences daily comfort and routine. It affects whether bedtime feels restful or cramped and whether mornings begin smoothly or with discomfort.
Each family’s routine, space, and sleep habits differ. Whether you choose a single for a child, a queen for balance, or a super king for family co-sleeping, the right fit depends on your lifestyle.
When you compare mattress sizes in Australia, focus on what feels comfortable and functional for your household. The best bed size enhances your sleep experience and makes your space feel complete.
