Mattress Size Guide Australia: Find Your Perfect Fit
Stop guessing. Start sleeping better.
Choosing the right mattress size isn’t just about fit—it’s about making your life easier, your sleep deeper, and your space work smarter. Whether you’re setting up a kid’s room, downsizing to an apartment, or upgrading your setup, this guide has you covered.
Mattress Sizes Explained (With Real-Life Fit Advice)
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Single Mattress
Best for: Kids, teens, solo sleepers, small rooms
Compact and affordable
Fits bunk beds and daybeds
Easy to move and set up in tight spaces
Why choose a Factory Buys Single Mattress?
Designed for comfort and support in compact spaces
Easy to manoeuvre and ideal for first beds or spare rooms
Budget-friendly with no compromise on materials
Arrives vacuum-packed for quick setup
Real Customer Reviews
"Perfect first bed for my son—he loves it and so do we."
"Surprisingly comfortable and easy to unpack. Delivery was quick."
"Great quality for the price. Would definitely buy again."King Single Mattress
Best for: Growing teens
tall single adults
Extra length for long legs
Ideal for narrow rooms that need extra stretch
Why choose a Factory Buys King Single?
Extra room without needing extra floor space
Popular with taller teens and young adults
Strong edge support and zoned spring designs
Still affordable, still free delivery Australia-wide
Real Customer Reviews
"My teenage daughter is sleeping so much better now—perfect size upgrade."
"Impressive comfort and support for the price."
"Ideal for our guest room. Looks and feels more expensive than it is."
Double Mattress
Best for: Solo adults who like space, guest rooms
Wider than a king single
Still compact enough for small apartments
Double Down on Value
Gives solo sleepers more room without breaking the bank
Perfect for multipurpose rooms and flexible setups
Available in both plush and firm styles
Lower cost than queen, same support quality
Real Customer Reviews
"So comfy—I use it every night, not just for guests."
"Excellent balance of firmness and softness. Great buy."
"Setup was easy and it fluffed up quickly. Super happy with the value."
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Queen Mattress
Best for: Couples, master bedrooms
Australia’s most popular size
Great balance of room and comfort
Fits most modern queen bed frames
Why choose our Queen Mattresses?
Pocket springs reduce partner disturbance
Medium-firm feel suits most sleep styles
A great middle ground between size, comfort, and cost
Real Customer Reviews
"Fantastic comfortable bed—the best night’s sleep ever. Can’t go wrong. Perfect."
"Very comfortable mattress and still offers good support. Delivery was super quick."
"This mattress is amazing—I’m getting much better sleep now, thank you!"
"Incredible value. I’ve already recommended it to family."
King Mattress
Best for: Couples who like space, luxury feel
Wider than a queen
Great for co-sleeping with kids or pets
Best suited to large bedrooms
When Bigger is Better
Room to stretch out, even with pets or little ones
Maximum comfort for couples who need more personal space
Premium feel without the designer price tag
Built to last with strong edge support and deep comfort layers
Real Customer Reviews
"Absolutely love the space—no more elbow wars at night."
"Feels like a hotel bed at home. Thick, supportive, and quiet."
"We upgraded to king and won’t look back. Delivery was smooth too."
Super King Mattress
Best for: Families, luxury seekers, oversized master bedrooms
The widest standard mattress available
Ideal for co-sleeping or anyone who loves maximum space
Great for large open-plan master suites
Why choose a Factory Buys Super King?
More space than any other size—no more crowding
Luxury feel, without the inflated price
Same premium materials, more room to stretch
Real Customer Reviews
"Game changer. We’ve got room for us, the toddler, and even the dog."
"Didn’t realise how much we needed a super king until now—best purchase ever."
"Superb comfort. Worth every dollar for the space and sleep quality."
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Mattress Dimension Guide
Single – 92 cm x 188 cm
King Single – 107 cm x 203 cm
Double – 138 cm x 188 cm
Queen – 153 cm x 203 cm
King – 183 cm x 203 cm -
How to Choose the Right Size
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Here’s what to consider:
Who’s using it? A 5-year-old doesn’t need a king. But a growing teen might outgrow a single fast.
What’s the room size? A queen in a tight room = daily stubbed toes.
Do you already own a bed frame? Make sure the mattress matches.
Are you sharing the bed? If yes, skip anything below queen.
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Fit Guide: Room Size Recommendations
Mattress to ideal room size measurements included below:
Single – 2.1m x 2.7m
King Single – 2.2m x 3.0m
Double – 2.7m x 2.9m
Queen – 3.0m x 3.2m
King – 3.2m x 3.4m+
Why Buy from Factory Buys?
✅ Free shipping Australia-wide
✅ Mattresses designed for Aussie lifestyles & rooms
✅ Budget-friendly prices without skimping on quality
✅ Trusted by parents, renters, and first-time buyers
Ready to upgrade your sleep?
Browse our full mattress collection and choose the size that fits you, your space, and your budget.