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Super King Mattress Protectors

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$169.95 $279.95 (Save $110)

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Finding the Right Super King Mattress Protector

Your Australian guide to protecting the largest standard mattress size — from spills and heat to deep-profile fitting.

Protecting Expansive Luxury Mattresses

Measuring an expansive 203cm by 203cm, a Super King mattress is the pinnacle of bedroom luxury and space. Because of their immense size and the premium materials typically used in their construction, Super King mattresses represent a significant financial purchase. Leaving a mattress of this size and value unprotected against daily wear, moisture, and allergens is a risk that can lead to premature degradation of the bed.

Due to their width and often exceptionally deep profiles, finding bedding that fits a Super King correctly without slipping, bunching, or tearing can be challenging. A specifically tailored, well-fitted super king mattress protector helps maintain the hygiene and structural integrity of these larger mattresses, offering a practical, unnoticeable layer of defence that preserves the "brand new" feel of the bed for years.

203 x 203 cm
Super King

20cm wider than a standard King (183 x 203cm) — a perfectly square sleep surface offering the maximum space available in standard Australian bed sizes. Deep profiles of 35cm+ are common, so always check skirt depth when selecting a protector.

What to Look for in a Super King Protector

  • Extra-deep skirts (40–50cm) for thick luxury mattresses
  • Breathable fabrics to manage heat from two sleepers
  • Waterproof membrane for large surface area spill coverage
  • Stretchable knit construction that stays put overnight
  • Machine washable in a standard domestic washing machine
  • Silent, flexible material that won't alter mattress feel

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Explore each topic to find the information most relevant to your needs.

Key Considerations for Super King Protectors

The sheer size of a Super King mattress introduces specific challenges that smaller beds simply don't face. Here are the three most important factors to consider.

Spill Protection Managing Large Surface Area Spills

With a massive surface area, the statistical likelihood of general wear, sweat accumulation, and occasional spills — whether from a morning coffee in bed or a pet jumping up — increases significantly.

A waterproof super king mattress protector acts as an insurance policy. It utilises a quiet, microporous polyurethane backing that ensures moisture is stopped completely at the surface, preventing it from soaking into the deeper, un-washable layers of the mattress and causing permanent damage.

Temperature Regulation Temperature Regulation for Two Sleepers

Super King beds easily and comfortably accommodate two sleepers. However, two bodies sharing a sleep surface naturally generate a significant amount of ambient body heat, which can become trapped in the bedding.

When looking for a super king mattress protector Australia wide, it is highly advisable to prioritise breathability. Materials like natural Bamboo, eucalyptus-based Tencel, or advanced cooling Ice-yarn are excellent options — engineered to wick moisture away from the skin and actively promote airflow, helping to disperse trapped heat and regulate the temperature for both partners.

Best picks: Tencel | Bamboo | Coolmax

Deep Mattress Fit Accommodating Deep Mattress Walls

Super King mattresses frequently feature ultra-thick luxury pillow-tops or deep pocket-spring systems, often exceeding 35cm in height. A standard, cheaply made protector will not stretch far enough to tuck securely under a mattress of this depth.

Attempting to force it will result in the skirt tearing or the corners snapping off as soon as you roll over. When selecting a protector, it is crucial to look for options with extra-deep, highly stretchable knitted skirts (often 40cm to 50cm deep) designed specifically to grip underneath taller mattress profiles securely.

Super King vs Other King Sizes

Understanding how the Super King compares to other large mattress sizes helps ensure you order the correct protector — a King protector will not fit a Super King mattress.

Size Dimensions Difference from Super King Typical Depth
Queen 153 x 203 cm 50cm narrower Up to 45cm
King 183 x 203 cm 20cm narrower Up to 50cm
Super King 203 x 203 cm Up to 50cm
Important:

A standard King protector (183cm wide) is 20cm too narrow for a Super King mattress and will not fit. Always select a protector specifically labelled "Super King" to ensure correct coverage and a secure fit.

Shop Super King Mattress Protectors

Browse our full range of Super King protectors — from waterproof fitted options to breathable bamboo and cooling Tencel. Designed to fit Australia's largest standard mattress size.

Buying with Your NDIS Plan

Waterproof mattress protectors used for disability-related continence management are a recognised NDIS support, funded from your Core Supports — Consumables budget. As a low-cost item (under $1,500), you generally don't need pre-approval or quotes — just evidence that the need relates to your disability.

How to Purchase:

  • Plan Managed: Use the Checkout with NDIS button, providing your plan details. An invoice will be sent directly to your Plan Manager.
  • Agency Managed: Use the Checkout with NDIS button, providing your plan details. We will charge your plan through the NDIS portal.
  • Self Managed: Purchase using your preferred payment method. You will receive a Tax Invoice which you can submit through the NDIS myplace portal for reimbursement.
  • Need a Quote? If you or your OT, Support Coordinator, or other health professional needs a quote to submit to the NDIA for pre-approval of an item, checkout as normal, selecting the "Quote Only" payment method. You won't be charged, but you will receive a formal quote via email.

National Disability Insurance Scheme

Sleep Solutions is a registered NDIS provider

Sleep Solutions is registered as a provider with the NDIS

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Frequently Asked Questions

What size mattress protector do I need for a super king bed?

An Australian super king mattress protector measures 204 cm x 204 cm. This is wider and longer than a standard king (183 x 203 cm). A king size protector will not fit — you need one specifically made for the super king dimensions.

Are waterproof mattress protectors noisy or hot?

Modern waterproof mattress protectors use thin, silent membrane technology that you won't hear or feel. Premium options with bamboo or Tencel fabric actively wick moisture and improve airflow, making them cooler than sleeping without a protector.

Can I wash a Super King protector in a standard washing machine?

Yes. Despite the large dimensions of the bed, a super king mattress protector is designed to be relatively lightweight and pliable. It will easily fit into a standard domestic washing machine. We recommend washing it on a gentle, warm cycle and avoiding harsh bleaches that could degrade the waterproof membrane.

Will a waterproof protector make my Super King bed feel stiff?

Premium modern protectors do not use the thick, rigid PVC plastics of the past. They utilize an ultra-thin, flexible polyurethane film that is designed to stretch and move with the fabric. This ensures that the protector remains completely silent and does not alter the plush, contouring feel of your mattress.

Will a King protector fit a Super King mattress?

No. A King protector is 183cm wide while a Super King is 203cm wide — that's a 20cm shortfall. Forcing a King protector onto a Super King mattress will leave the sides exposed or cause the elastic to overstretch and fail. Always select a protector specifically labelled "Super King."

What skirt depth should I look for?

Super King mattresses commonly have deep profiles exceeding 35cm. We recommend choosing a protector with a 40cm to 50cm expandable skirt to ensure a secure, snug fit that stays in place — even on thick pillow-top or euro-top mattresses.