Sized for the super king — the most generous bed there is. A super king mattress protector safeguards the largest mattress in any home across its full square footprint, guarding against spills, sweat and allergens while washing far more easily than the mattress itself. Waterproof and breathable, in a fitted-skirt design that stays put, with a bamboo-blend option for softer, cooler sleep. Part of our wider mattress protectors range, family-owned, priced direct and held in stock locally.
Waterproof bamboo mattress protector with breathable hypoallergenic cover
Australian-made waterproof mattress protector with soft terry cotton top
The Super King Protector — for the Largest Bed There Is
The super king is the most generous mattress made — a square of sleeping space that gives two people room to spread out completely, with space to spare. A super king mattress protector keeps that large investment clean and dry across its full footprint, taking the nightly wear and the occasional spill so the mattress stays fresh and warranty-intact. And because it's the biggest mattress in the house, it's also the hardest and priciest to clean — which makes the protector that takes the hit for it more valuable, not less.
Why It's Worth It
Protects your largest investment
A super king mattress is the most expensive in any home. A protector is the cheapest insurance you can put on it — and it helps keep the warranty valid, since stains void many.
Healthier sleep for two
Two sleepers across a wide footprint means more moisture and allergens. A barrier against dust mites and sweat keeps the whole surface cleaner for both of you.
Full square-footprint coverage
The super king's broad, square shape is exactly where a fitted protector earns its keep — even coverage edge to edge, with a skirt that holds it secure all night.
Cooler with bamboo
The bamboo-blend option adds a breathable, moisture-wicking surface — softer and cooler for two people sharing the largest bed through warm Queensland nights.
Super King Size & Fit
An Australian super king mattress measures 203 × 203 cm — a square, and the largest standard size available. That's 20 cm wider than a king, which is exactly why a king protector won't fit it. Our super king protectors are made to match, with a fitted skirt that stretches over the mattress like a deep fitted sheet and holds secure across the full width. Size to the super king specifically — nothing smaller will reach.
Need a Different Size?
Shop the matching protector for every bed in the house:
Caring for Your Protector
That's the whole point — a protector is far easier to wash than a mattress, and on a super king that difference is at its biggest. Most are machine-washable; follow the care label and avoid high heat on the waterproof backing, which can degrade it over time. Wash every couple of weeks, or straight away after a spill, and both the protector and the super king mattress under it will stay in good shape for years.
Why Buy Your Super King Protector at A2Z
A protector is a small purchase that protects a much larger one, and the super king is the largest of all. As a Queensland family business since 2013 we keep protectors in stock and priced direct, across five South-East Queensland showrooms in Brisbane (Rocklea), Ipswich, Bundall, Sandgate and Beenleigh, open seven days. Free local delivery is available within roughly 10 km of our Rocklea warehouse, with paid delivery across Brisbane, the Gold Coast, Sunshine Coast, Ipswich, Logan and Toowoomba, and flexible payment through Afterpay, Zip, Humm and Latitude.
Super King Mattress Protector FAQs
What size is a super king mattress protector?
It's made to fit a standard Australian super king mattress — 203 × 203 cm, a square and the largest standard size — with a fitted skirt that stretches over the mattress like a deep fitted sheet.
Will a king protector fit a super king?
No — a king is 183 cm wide and a super king is 203 cm, so a king protector is 20 cm too narrow and won't reach across. Size to the super king specifically. If you have a king, see our king protectors instead.
Are your super king protectors waterproof?
Yes — they're fully waterproof, guarding against spills, sweat and accidents while staying breathable. There's also a bamboo-blend version with the same waterproofing and a softer, cooler top surface — ideal on the largest bed two people share.
Why does a super king protector matter?
Because the super king is the largest and most expensive mattress in any home, and the hardest to clean if something gets through. A protector takes the wear and the spills instead, keeping a major investment hygienic and its warranty intact.
Can I machine-wash a super king mattress protector?
Most are machine-washable — follow the care label and avoid high heat on the waterproof backing, which can shorten its life. Washing every couple of weeks, or right after a spill, keeps it performing.
Can I buy super king protectors in-store?
Yes — visit any of our five Queensland showrooms in Rocklea, North Ipswich, Beenleigh, Sandgate or Bundall, open seven days. Find addresses and hours on our contact page.
Complete the Bed
Round out the bed: add a supportive pillow, or browse the full bedding range for everything that keeps your sleep setup fresh.
Browse the super king mattress protectors above, shop other sizes from single to king, or see all mattress protectors.