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.

  • 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."

  • 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."

  • 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

  • Person in orange safety vest opening a large cardboard box on a carpeted floor.
    Person in orange safety vest opening a large cardboard box on a carpeted floor.
  • 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.

  • 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.