Our largest size — maximum room for two, at warehouse pricing.
Choosing the Right Super King Mattress
A super king is the size you buy when space is the entire point — but the biggest mattress only delivers if the room can take it and the build suits how you sleep. This guide covers who a super king suits, whether it'll fit, the focused range we stock, how to think about firmness, and the one practical thing most buyers underestimate at this size.
Who a super king mattress suits best
- Large master bedrooms: rooms where even a king looks modest and there's clear floor space to walk around a 203 cm-wide bed.
- Couples who want genuine separation: the near-square surface means two people can move all night without ever meeting in the middle.
- Families with weekend visitors: enough room that kids or pets climbing in on a Sunday morning doesn't cost anyone sleep.
- Taller and larger builds wanting the maximum: the most width available in a standard size, with the full 203 cm length.
One honest note: a super king needs a genuinely large bedroom — more than a king asks for. If the room is average-sized, the bed will dominate it; a king is the smarter fit in most homes.
The super king range we stock
This is a deliberately small, curated selection rather than the breadth we carry in the smaller sizes — a focused range built around two proven constructions, with firmness from medium through to a firmer feel.
- Memory foam: contours to relieve pressure and isolates movement across the wide surface — the calmest option if one sleeper moves a lot.
- Pocket spring: responsive support with better airflow across a large surface — a well-rounded choice for couples.
- Memory-foam & pocket-spring hybrid: the two combined — contouring comfort over a supportive spring core. This is the entry model in the range, from $649.
Firmness — find your feel
Sleeping position is the best starting point: side sleepers usually want a softer surface that lets hips and shoulders sink in; back and stomach sleepers usually need firmer support to keep the spine aligned. Because the super king range is curated rather than broad, the practical choice sits in the medium-to-firm band — the showroom is the surest way to judge which suits you.
- PlushSoft, cushioned surface — suits side sleepers and lighter builds. See our soft & plush range.
- MediumBalanced support and give — the most accommodating shared choice. See medium firm.
- FirmSolid, supportive feel — suits back and stomach sleepers and heavier builds. See our firm range.
- Extra firmMaximum support with minimal give. See extra firm.
The thing most super king buyers underestimate: bedding
Worth knowing before you commit: super king sheets, protectors and quilts are specialist items — less common and generally pricier than king-size bedding, and not every linen range goes up to 203 × 203 cm. It's not a reason to avoid a super king, but it's a real cost and convenience factor to plan for. We stock super king mattress protectors sized to fit.
Super king or king?
A super king is 203 × 203 cm; a king is 183 × 203 cm — same length, but the super king is 20 cm wider and near-square. Choose a super king only if the room is large enough to carry it and you want the absolute most space; in most homes a king delivers the same length and comfort with a far easier fit and cheaper bedding.
Why buy your super king mattress from A2Z
The A2Z Furniture is a family-run Australian business established in 2013. A super king is a premium purchase, so getting it right in person matters more, not less: instead of guessing from a screen and waiting out a trial period, you feel the exact mattress first, across five South-East Queensland showrooms — Rocklea, Virginia, Bundall, North Ipswich and Beenleigh. Because we import directly and sell from our own Brisbane warehouse, the price isn't inflated by a retail markup. Stock is held with pick-up seven days a week, plus Free Local Delivery on eligible orders from Rocklea. Every mattress carries a manufacturer's warranty (the period varies by model — check the product page) — see our warranty policy — and you can spread the cost interest-free with Afterpay, Zip, Latitude, Klarna and PayPal. Verified customer reviews are shown on each product to help you compare. Prefer to talk it through? Call our team on 1300 781 990.
Super King Mattress FAQs
What size is a super king mattress in Australia?
A super king is 203 × 203 cm — the largest standard Australian size and near-square, the same length as a king but 20 cm wider. For exact dimensions and a full comparison, see our king vs super king guide.
How much does a super king mattress cost at A2Z?
Super king is a premium size and the range is curated — pricing starts from around $649 for a memory-foam-and-pocket-spring model and rises with the construction. The product grid above shows current pricing. Interest-free payment is available through Afterpay, Zip, Latitude, Klarna and PayPal.
What's the difference between a king and a super king mattress?
A king is 183 × 203 cm; a super king is 203 × 203 cm — same length, but the super king is 20 cm wider and near-square. Browse the king range or compare both in our king vs super king guide.
Will a super king mattress fit my room?
Only in a genuinely large bedroom — it needs more clear space than a king, with room to walk around all sides. If the room is average-sized the bed will dominate it, and a king is the better fit. Our bed size guide has room-size detail.
Is super king bedding easy to find?
It's more specialist than king-size bedding — super king sheets, protectors and quilts are less common and generally pricier, and not every range goes to 203 × 203 cm. Plan for it as part of the purchase. We stock super king mattress protectors sized to fit.
Can I see and test super king mattresses before I buy?
Yes — and at this price it's worth it. You can try the super king range in person at any of our five South-East Queensland showrooms: Rocklea, Virginia, Bundall, North Ipswich and Beenleigh. The range is curated, so the team can talk you through the options quickly.
Do you deliver super king mattresses, or can I pick one up?
Both. Stock is held in our Brisbane (Rocklea) warehouse with pick-up seven days a week, and Free Local Delivery is available on eligible orders from Rocklea — see our delivery details. A super king is large and heavy, so we'd suggest two people for handling and a clear path into the room.