Double Size Mattress Australia: Is It Big Enough
Share
What Size Is a Double Mattress in Australia?
- Wider than a king single
- Narrower than a queen
- Ideal for solo adults, guest rooms, and smaller bedrooms
Is a Double Mattress Big Enough for Couples?
Short answer?
Yes… but it depends how much you like each other.
A double gives each sleeper about 69 cm of personal space. For reference:
- A queen gives 76.5 cm each
- A king gives 91.5 cm each
So a double works best if:
- You’re both smaller in build
- You don’t move around much
- It’s short-term use (guest room, temporary setup)
- The bedroom is tight on space
If you’re a light sleeper and your partner tosses and turns, a double can feel snug very quickly.
In Australia, most long-term couples eventually upgrade to a queen.
Is a Double Mattress Good for One Person?
Absolutely.
In fact, this is where a double really shines.
For solo sleepers, a double feels luxurious without overwhelming the room. You can:
- Stretch out
- Roll around
- Sleep diagonally (no judgement)
- Share the bed with a dog
If you want more space than a king single but don’t need queen-level width, a double hits a sweet spot.
Who Should Choose a Double Mattress?
A double mattress isn't the right choice for everyone, but it can be an excellent fit for certain sleepers and room layouts.
A double mattress is often the best option for:
Solo Adults Who Want More Space
If a single or king single feels restrictive, a double mattress provides significantly more room to move around while still fitting comfortably in smaller bedrooms.
Apartment and Small Home Owners
In apartments and compact Australian homes, a double mattress offers a practical balance between sleeping space and floor space. It provides more comfort than a single without overwhelming the room like a queen can.
Guest Bedrooms
A double mattress is one of the most versatile guest room options. It comfortably accommodates one adult and can also work for occasional couples staying overnight.
Teenagers Transitioning From a Single Bed
For growing teenagers who need more sleeping space but don't have room for a queen bed, a double mattress can be a smart long-term upgrade.
Budget-Conscious Buyers
Double mattresses, bed frames, and bedding are generally more affordable than queen-size alternatives, making them a popular choice for first-home buyers and students.
Double vs King Single: What’s the Real Difference?
This is one of the most searched mattress comparisons in Australia.
| Size | Dimensions | Best For |
|---|---|---|
| King Single | 107 × 203 cm | Tall solo sleepers |
| Double | 138 × 188 cm | Solo adults wanting width |
The key difference?
- King single = longer
- Double = wider
If you’re tall (over 180 cm), the king single’s 203 cm length may feel more comfortable.
If you’re average height and want more shoulder space, the double wins.
Double vs Queen: Should You Just Go Bigger?
| Feature | Double Mattress | Queen Mattress |
| Dimensions | 138 × 188 cm | 153 × 203 cm |
| Best For | Solo adults, teenagers, guest rooms | Couples, master bedrooms |
| Bedroom Size | Smaller bedrooms | Medium to large bedrooms |
Here’s where people hesitate.
A queen mattress measures 153 × 203 cm.
Compared to a double, it’s:
- 15 cm wider
- 15 cm longer
It doesn’t sound like much — but in a bedroom, it’s noticeable.
Choose a double if:
- Your room is under 3 metres wide
- You’re sleeping solo
- Budget matters
- You want more floor space
Choose a queen if:
- Two adults are sleeping long-term
- One or both sleepers are tall
- You want more personal space
In most Australian homes, queen is the “default couple size.” But that doesn’t mean double is wrong — it just means it’s more situational.
What Room Size Do You Need for a Double Bed?
This is where many people go wrong. They measure the mattress but forget about walking space.
| Room Size | Recommended Mattress |
|---|---|
| Under 3m × 3m | Double |
| 3m × 3.5m | Double or Queen |
| Over 3.5m × 3.5m | Queen or King |
Minimum room size:
2.7 m × 3 m
This allows basic circulation and one accessible side.
Ideal room size:
3 m × 3 m or larger
This gives you:
- Two bedside tables
- Comfortable walking clearance
- Space for wardrobes or drawers
If your bedroom is on the smaller side, a double can feel much more practical than squeezing in a queen.
Is a Double Mattress Too Short?
At 188 cm long, a double is the same length as a single.
If you’re under 180 cm tall, you’ll likely be fine.
If you’re taller than 185 cm, your feet may sit close to the edge — especially if you sleep stretched out.
This is where many tall Australians choose:
- King single (longer)
- Queen (longer and wider)
Length is often overlooked — but it makes a real difference in comfort.
When Does a Double Make the Most Sense?
A double mattress is a smart choice if:
- You’re upgrading from a single
- You live in an apartment
- It’s a guest bedroom
- You want flexibility
- You don’t want the room dominated by the bed
It’s also popular in older Australian homes where bedroom dimensions are slightly narrower.
What About Mattress Thickness?
Double mattresses usually range between:
- 20 cm (standard profile)
- 25–35 cm (premium profile)
Thicker mattresses tend to offer:
- Better pressure relief
- Improved durability
- More edge stability
Just make sure your fitted sheets and bed frame match the mattress height.
Bedding Tips for Double Mattresses
Stick to:
Some people size up their doona to queen for extra overhang — especially if sharing the bed.
Looking for a Double Mattress?
At Onebed, our double mattress range is designed for Australian sleepers who want space without upsizing to a queen.
You can explore the full collection here:
👉 Double Mattress 👈
Here’s a quick breakdown of the available models in double size:
| Mattress Model | Best For | Key Features | Sleep Feel |
|---|---|---|---|
| Onebed Essential | Solo sleepers, guest bedrooms, budget-conscious buyers | Balanced medium support, simple all-round comfort | Medium feel |
| Onebed Original | Couples, combination sleepers, sleepers wanting better support | Pocket spring support, adaptive comfort foam, zoned ergonomic design | Responsive medium to medium-firm feel |
| Onebed Max | Long-term users, couples, sleepers wanting premium comfort | Higher-profile design, upgraded comfort layers, enhanced pressure relief | Plush yet supportive feel |
Which Double Mattress Should You Choose？
- Want simplicity and value → Essential
- Want balanced support and versatility → Original
- Want premium comfort and durability → Max
All three models are available in double size (138 × 188 cm) and built to meet Australian standards.
If you’re still deciding whether double is right for your room, revisit the size guide above to confirm your space requirements before purchasing.
So… Is a Double Mattress Right for You?
It depends on how you sleep, how tall you are, and how much space you have.
A double is:
- Spacious for one
- Compact for two
- Practical for smaller rooms
- A great middle-ground size
It’s not oversized. It’s not tiny. It’s simply situational.
If you’re deciding between sizes, compare it alongside other Australian options in our full Bed Mattress Size Guide Australia to see how it stacks up.
