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Dust Mite Mattress Protector & Encasement | Waterproof | AU
Dust Mite Mattress Protector & Encasement | Waterproof | AU
This waterproof dust mite mattress protector zips your whole mattress inside a soft, quiet barrier — top, bottom and every side — so the build-up stays sealed in, and spills, sweat and accidents stay out.
- Seals the whole mattress inside — U-shape zip with a Velcro lock flap
- Waterproof microporous TPU membrane, third-party pore-size tested
- Soft, quiet jersey — no plastic crinkle
- Machine washable up to 60°C
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Waterproof dust mite mattress protector
Allergy specialists recommend dust mite covers.
It’s on ASCIA’s list of practical steps for reducing dust mite allergen at home — and it’s the one that keeps working while you sleep.
ASCIA recommends covering mattresses, pillows and quilts with dust mite resistant covers.
ASCIA allergen minimisation guidance — the peak allergy body for Australia and New Zealand.
Encasings produced a significant long-term reduction in dust mite allergen over 12 months.
Randomised, double-blind controlled trial. Halken et al., 2003, Journal of Allergy and Clinical Immunology.
ASCIA, the peak body of allergy specialists in Australia, recommends dust mite covers as part of minimising exposure. Neither ASCIA nor the researchers cited endorse a particular brand.
Built as a barrier
Waterproof. Breathable. Quiet.
A microporous TPU membrane sits behind a soft knitted jersey. It stops liquids and fine particles, lets water vapour through, and feels like fabric — not plastic.
0.16 µm
Our tightest barrier.
Every pore measured under 1 micron in third-party testing — the finest barrier we sell.
6
Sides enclosed.
Top, bottom and every edge inside the barrier, closed with a U-shape zip and a Velcro lock flap. Not a fitted sheet with an open underside.
Dry
Waterproof.
Spills, sweat and accidents stay on the surface and out of your mattress.
0
Raw seam edges. Sealed at the seams, not just the zip.
Seams are where cheaper covers leak. Ours are folded and bound closed, so the barrier carries right to the edges.
Quiet
No crinkle.
Soft knitted jersey on the outside, so it feels and sounds like fabric — and it breathes, unlike vinyl or PVC.
What the research shows
Even a new mattress builds up dust mite allergens over time.
A 2010 study tracked 60 brand-new mattresses of four different types for a year. All four built up dust mite allergen to levels the researchers classed as high within 6 to 9 months. A new mattress doesn’t stay clean for long — covering it is what keeps the build-up sealed away.
Visitsunthorn et al., 2010, Asian Pacific Journal of Allergy and Immunology.You wash the sheets.
Not the mattress.
You spend around a third of your life on your mattress, and it’s the one thing in the bedroom you can’t put through the wash. One spill or accident soaks straight in.
The easier answer: zip it on once.
Dust mite allergen stays sealed in. Spills stay out.
Why a standard waterproof protector isn’t enough
Standard waterproof protector vs dust mite mattress protector.
A standard waterproof protector is made for spills. A dust mite protector is made to be a barrier on every side — and the difference is in the details.
| Standard waterproof protector | This dust mite protector | |
|---|---|---|
| Fabric | Often terry or quilted, with a vinyl or PVC backing | Soft knitted jersey with a microporous TPU membrane |
| Coverage | Top and sides only, held on with an elastic skirt | All six sides enclosed, U-shape zip with a Velcro lock flap |
| Feel | Vinyl and PVC types can crinkle and feel hot | Quiet, and lets water vapour through |
| Pore size | Rarely tested or published | Third-party tested: most common 0.16 µm, every pore under 1 µm |
| Made for | Spills | Spills and a barrier against dust mite allergen build-up |
Tested, not guessed.
How small are the gaps in the membrane?
Most of the tiny gaps in the membrane are about 0.16 microns wide, and every gap measured is under 1 micron. A micron is one-thousandth of a millimetre — far too small to see.
In plain terms: the droppings that carry dust mite allergen are more than 60 times bigger than most of the gaps in this membrane. Even the biggest gap measured is 13 times too small for them.
Pick your depth. Measure once.
Choose the right mattress protector depth for your mattress.
Measure from the top of the mattress to the bottom edge, then choose the depth that covers it.
Single to Super King, plus Cot (18–24cm). The 16cm depth (for mattresses 10–20cm thick) is available in Single only; 24cm suits 18–24cm mattresses and 33cm suits 24–33cm. Deeper than 33cm? Our 100% cotton protector comes in 35cm and 42cm. Opened encasements are hygiene products and can’t be returned for change of mind, so please measure first.
Is it right for you?
Who this waterproof dust mite mattress protector is for.
Made for you if…
- You want a dust mite barrier and spill protection in one.
- There’s bed-wetting, night sweats or incontinence in the house, or you care for someone at home.
- You want the tightest barrier we sell — every pore under 1 micron.
- You want proof: a third-party tested membrane, not just a promise.
Choose another option if…
- You sleep hot or prefer natural fibre — choose our 100% cotton protector.
- Your mattress is deeper than 33cm — the cotton protector comes in 35cm and 42cm.
Less work than what you’re doing now
Fit it once. Then it just works.
Waterproof or cotton dust mite protector?
Both zip fully closed and are third-party pore-size tested.
Waterproof
This one · our tightest barrier
Tightly woven cotton
Most breathable
Everything you get
More than a cover.
- ✓Waterproof dust mite mattress protectorU-shape zip with Velcro lock flap, enclosed binding seams, six-sided coverage, up to three depths
- ✓Third-party pore-size test reportAsk us for a copy any time
- ✓12-month warrantyAgainst manufacturing defects, on top of your Australian Consumer Law rights
- ✓Free shipping over $150Australia-wide, dispatched in 1–3 business days
- ✓Real answers from a dust mite specialistNot sure on size or fabric? Email us before you buy
Bundle and save
Your mattress is one of three.
Protect the whole bed.
ASCIA recommends covering the mattress, pillows and quilt. The waterproof whole-bed bundle covers all three, plus a Mattress Mate slip-on for easy weekly washing — and saves 10% on buying them separately.
Shop the whole-bed bundle
Tonight
Three steps. Then forget about it.
- 1Zip it on.Stand the mattress up, slide the protector over, zip it closed and press the Velcro flap down over the zip. Easiest with two people.
- 2Make the bed.Sheets go straight on top. Add a Mattress Mate slip-on if you want an easy weekly wash layer.
- 3Sleep.Wash it every couple of months, or straight away after a spill. That’s the whole routine.
Step one of a proven plan
Start with the bed. Then build on it.
A 2018 review by allergy researchers at the University of Virginia describes combining several measures as more likely to succeed than any single step (Wilson & Platts-Mills). Covers are a sensible place to start. Here is what the research says works alongside them.
Encase the bed and hot-wash weekly.
Covers on the mattress, pillows and quilt. Research found water at 55°C or above was effective at reducing dust mite populations in bedding (McDonald & Tovey, 1992).
Shop bundles ›Keep humidity below 50%.
Homes kept below 51% humidity for 17 months had 98% fewer live dust mites (Arlian et al., 2001).
Dehumidifiers ›Vacuum with a HEPA filter.
In a real-home study, intensive HEPA vacuuming cut dust mite allergen in carpets by about 81% (Yu et al., 2009).
HEPA vacuums ›Clean the air.
HEPA air cleaners are on leading researchers’ priority list for dust mite reduction (Wilson & Platts-Mills, 2018).
Air purifiers ›Findings are from the cited studies and describe the methods tested, not specific products. See the full step-by-step guide ›
Waterproof dust mite mattress protector questions.
Do dust mite covers work?
The evidence is strong. ASCIA recommends covering mattresses, pillows and quilts with dust mite resistant covers, and a 12-month randomised controlled trial found mattress and pillow encasings produced a significant long-term reduction in dust mite allergen (Halken et al., 2003). They work best fully zipped, alongside weekly hot washing of sheets.
What’s the difference between a mattress protector and a mattress encasement?
A standard mattress protector covers the top and sides like a fitted sheet and is made for spills and wear. A mattress encasement encloses all six sides and zips closed, so dust mite allergen inside the mattress stays sealed in. This product is a waterproof dust mite mattress encasement.
Will a waterproof protector make me hot?
It breathes far better than vinyl or PVC, because the microporous TPU membrane lets water vapour through. It is slightly warmer than our 100% cotton protector, so if you sleep hot, cotton is the better choice.
Does it feel or sound like plastic?
No. The membrane sits behind a soft knitted jersey, so the surface feels like fabric and doesn’t crinkle.
Is it suitable for bed-wetting and incontinence?
Yes. The TPU membrane stops liquid reaching the mattress, and the protector is machine washable, no hotter than 60°C.
Which materials are best for dust mite covers?
A fabric whose gaps are smaller than the 10–40 micron particles that carry dust mite allergen, made into a fully zipped cover. Our two options are tightly woven 100% cotton (most breathable) and this knitted jersey with a TPU membrane (waterproof, every pore under 1 micron).
How often should I wash it? Should I wash it before use?
Yes, wash it before first use. With a Mattress Mate slip-on protector on top that’s washed weekly with your bed linen, wash the encasement every 6–12 months. Without one, ASCIA recommends washing dust mite covers at least every two months. Wash straight away after a spill. Warm or gentle cycle, no hotter than 60°C. Skip bleach, fabric softener, ironing and hot dryers, which damage the membrane.
How long does it last, and when should I replace it?
Typically 4–5 years. Body oils and essential oils slowly break down the TPU membrane, so a slip-on protector on top and warm (not hot) washes help it last. Replace it sooner if the fabric tears or the zip no longer closes fully — a gap means the barrier is broken.
I have a deep mattress — which depth do I need?
Measure from the top of the mattress to the bottom edge. Choose the depth that covers it: 16cm (Single only, for mattresses 10–20cm thick), 24cm (18–24cm thick) or 33cm (24–33cm thick). The knitted jersey stretches a little, but a close match gives the best seal. Deeper than 33cm? Our 100% cotton protector comes in 35cm and 42cm.
Can I use it on an ensemble base?
Yes. Remove the legs, slide the protector over the base and zip it closed. Make a small cut at each leg position, then screw the leg back in through the cut so it seals against the base.
Can it be used for bed bugs?
Zippered encasements are often used as one part of managing bed bugs, because the zip is covered by a Velcro flap. It isn’t a bed bug treatment on its own; for an infestation, contact a licensed pest controller.
Tech specs
| Outer fabric | 90gsm polyester knitted jersey |
|---|---|
| Lining | 0.2mm microporous TPU waterproof membrane |
| Most common pore size | About 0.16 microns (third-party capillary flow porometry) |
| Mean flow (average) pore size | About 0.54 microns |
| Largest detected pore | About 0.75 microns |
| Closure | Three-sided U-shape zip with a Velcro lock flap, enclosed binding seams |
| Depths | 16cm (Single only), 24cm, 33cm |
| Care | Warm or gentle wash, no hotter than 60°C. Low or medium dry. No bleach, softener, ironing or dry cleaning. |
| Warranty | 12-month voluntary warranty against manufacturing defects, in addition to your Australian Consumer Law rights. Refund Policy |
| Shipping | Australia only. Free over $150. |
Small print
Not a medical product. We don’t claim this product cures, treats, prevents or relieves allergies, asthma or any medical condition. We describe the fabric’s measured physical properties as a barrier against fine particles and liquids. If you have a diagnosed condition, talk to your GP or allergist.
Barrier performance depends on correct fitting and the protector being fully zipped, with the Velcro flap closed.
Testing. Pore-size figures are from a third-party laboratory test report provided by our manufacturer; a copy is available on request. They describe the fabric, not a guarantee of allergen reduction.
Research (ASCIA; Halken et al., 2003; Visitsunthorn et al., 2010; Wilson & Platts-Mills, 2018; McDonald & Tovey, 1992; Arlian et al., 2001; Yu et al., 2009) is cited as findings of those sources about covers and methods in general, not claims about this product.
Want the full picture? Read our guide to allergy mattress covers or browse all dust mite covers.