Waterproof Dust Mite Mattress Protector & Encasement | 18–24cm | AU
Dust mite mattress protector, 18–24cm — waterproof, zippered
A waterproof mattress encasement that seals your mattress on all six sides, keeping dust mite allergens trapped inside and blocking liquid spills.
Your mattress is one of the largest dust mite allergen reservoirs in the home.
The microporous TPU membrane creates a barrier against the fine particles that carry those allergens (typically 10–40 microns), while also being waterproof. A fitted mattress protector goes over the top.
What makes a dust mite mattress protector effective
A microporous TPU membrane with pores measured at around 0.16 microns — far smaller than the 10–40 micron particles that carry dust mite allergens — laminated behind a soft, silent jersey outer. Pore-size figures are supplied by the manufacturer, Fifth Ridge Pty Ltd, from third-party testing.
- Dust mite allergen barrier — pores well below allergen-particle size, so dust mite waste stays sealed inside the mattress and out of the air you breathe.
- Waterproof TPU barrier — blocks spills, sweat and incontinence; useful for aged care, bed-wetting, and illness.
- Breathable, not sweaty — the membrane is microporous, letting water vapour through so the protector still breathes.
- Velcro-locked zipper — a U-shape zipper sealed by a Velcro flap that stops the zip working open and closes the gap.
- Soft, silent, stretchy — the jersey outer feels like fabric, not plastic (no crinkle) and stretches to fit varied mattress depths.
The pore-size detail (third-party tested)
Dust mite allergens are carried by fecal pellets and body fragments that typically measure 10 to 40 microns. According to test data supplied by the manufacturer, Fifth Ridge Pty Ltd, this fabric’s TPU membrane has pores measured at approximately 0.16 microns at maximum distribution (third-party capillary flow porometry, Galwick fluid) — well below that range, which is why the fabric can be used as a particle barrier. The full zippered closure encloses all six sides of the mattress. We have not independently conducted this testing; the figures are reproduced in good faith from the manufacturer.
Materials & specifications
| Fabric outer | 90gsm polyester knitted jersey |
|---|---|
| Lining | 0.2mm microporous TPU (thermoplastic polyurethane) waterproof membrane |
| Pore size | Approximately 0.16 microns at maximum distribution (capillary flow porometry, Galwick fluid). Figures supplied by the manufacturer, Fifth Ridge Pty Ltd, from third-party testing. |
| Depth | Fits mattresses 18–28cm deep |
| Closure | Three-sided U-shape zipper with Velcro lock flap |
| Waterproof | Yes — TPU membrane blocks liquid spills |
| Warranty | 10-year product warranty (excludes misuse, improper washing, or damage) |
What the research says about mattress encasings
A 2003 randomised controlled trial published in the Journal of Allergy and Clinical Immunology (Halken et al.) tested mattress and pillow encasings against placebo encasings in children with asthma and dust mite allergy. The trial found that the active encasings produced a significant long-term reduction in dust mite allergen concentrations in mattresses over 12 months.
This is a finding of that independent study, reported here for general information. Individual results vary, and this product is intended to be used alongside other dust mite reduction measures.
Who this dust mite mattress protector is for
Best for standard-depth mattresses (18–28cm) where you want a dust mite barrier and waterproofing in one.
Commonly chosen by
- Anyone building a dust mite barrier across mattress, pillow, and quilt
- Households with standard-depth mattresses in the 18–28cm range
- Carers and households needing spill protection and an allergen barrier together
Probably not the right fit if
- Your mattress is deeper than 28cm — see our 24–33cm waterproof version
- You prefer 100% natural fibres — see our cotton mattress encasement (OEKO-TEX certified, not waterproof)
Sizing
Fits mattresses 18–28cm deep. The knitted jersey stretches to accommodate variations in mattress depth within this range. To fit: stand the mattress on its side, slide the encasement over from the open end, lay flat, then close the zipper and seal the Velcro flap.
Choosing the right depth
Measure your mattress depth from the top surface to where it rests on the base. For depths above 28cm, choose our 24–33cm version. The jersey has stretch so it can accommodate a mattress a few centimetres outside the stated range, but a close match is best.
Care
Wash before first use, then every 3–6 months — or sooner after a spill. Warm or gentle cycle, do not exceed 60°C. Skip bleach and fabric softeners to protect the TPU membrane.
Full care instructions
- Wash: warm or gentle cycle. Do not exceed 60°C — high heat can damage the TPU membrane over time.
- Dry: tumble dry low/medium or air dry. Avoid hot dryers.
- Frequency: every 3–6 months when a slip-on protector sits on top. Wash sooner after any spill or accident.
- Lifespan: over 4–5 years, body oils can gradually break down the TPU. A top protector significantly extends its life.
- Avoid: bleach, fabric softeners, dry cleaning, ironing, and any oils or strong detergents.
Dust mite mattress protector FAQs
Will this fit my mattress?
This protector fits mattresses 18–28cm deep. The knitted jersey stretches to accommodate slight variations. For deeper mattresses, choose the 24–33cm version.
What’s the difference between this and the cotton mattress encasement?
Both can be used as a barrier against dust mite particles. This waterproof version has a TPU lining that also blocks liquid spills. The cotton version is 100% natural cotton, OEKO-TEX certified, and more breathable, but not waterproof.
Does it feel like plastic?
No. The TPU membrane is laminated behind a soft polyester knitted jersey, so the surface feels like fabric. There’s no plastic crinkle.
Will it make me hot at night?
Less than a fully laminated PVC protector, but slightly more than a 100% cotton encasement. The TPU membrane is microporous — it allows water vapour through, so it breathes — but it’s not as breathable as natural fibre.
What does OEKO-TEX certified mean?
OEKO-TEX Standard 100 is an independent textile certification. This waterproof product is not OEKO-TEX certified — if OEKO-TEX certification is important to you, see our cotton mattress encasement.
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Waterproof Dust Mite Mattress Protector & Encasement | 18–24cm | AU
Dust mite mattress protector, 18–24cm — waterproof, zippered
A waterproof mattress encasement that seals your mattress on all six sides, keeping dust mite allergens trapped inside and blocking liquid spills.
Your mattress is one of the largest dust mite allergen reservoirs in the home.
The microporous TPU membrane creates a barrier against the fine particles that carry those allergens (typically 10–40 microns), while also being waterproof. A fitted mattress protector goes over the top.
What makes a dust mite mattress protector effective
A microporous TPU membrane with pores measured at around 0.16 microns — far smaller than the 10–40 micron particles that carry dust mite allergens — laminated behind a soft, silent jersey outer. Pore-size figures are supplied by the manufacturer, Fifth Ridge Pty Ltd, from third-party testing.
- Dust mite allergen barrier — pores well below allergen-particle size, so dust mite waste stays sealed inside the mattress and out of the air you breathe.
- Waterproof TPU barrier — blocks spills, sweat and incontinence; useful for aged care, bed-wetting, and illness.
- Breathable, not sweaty — the membrane is microporous, letting water vapour through so the protector still breathes.
- Velcro-locked zipper — a U-shape zipper sealed by a Velcro flap that stops the zip working open and closes the gap.
- Soft, silent, stretchy — the jersey outer feels like fabric, not plastic (no crinkle) and stretches to fit varied mattress depths.
The pore-size detail (third-party tested)
Dust mite allergens are carried by fecal pellets and body fragments that typically measure 10 to 40 microns. According to test data supplied by the manufacturer, Fifth Ridge Pty Ltd, this fabric’s TPU membrane has pores measured at approximately 0.16 microns at maximum distribution (third-party capillary flow porometry, Galwick fluid) — well below that range, which is why the fabric can be used as a particle barrier. The full zippered closure encloses all six sides of the mattress. We have not independently conducted this testing; the figures are reproduced in good faith from the manufacturer.
Materials & specifications
| Fabric outer | 90gsm polyester knitted jersey |
|---|---|
| Lining | 0.2mm microporous TPU (thermoplastic polyurethane) waterproof membrane |
| Pore size | Approximately 0.16 microns at maximum distribution (capillary flow porometry, Galwick fluid). Figures supplied by the manufacturer, Fifth Ridge Pty Ltd, from third-party testing. |
| Depth | Fits mattresses 18–28cm deep |
| Closure | Three-sided U-shape zipper with Velcro lock flap |
| Waterproof | Yes — TPU membrane blocks liquid spills |
| Warranty | 10-year product warranty (excludes misuse, improper washing, or damage) |
What the research says about mattress encasings
A 2003 randomised controlled trial published in the Journal of Allergy and Clinical Immunology (Halken et al.) tested mattress and pillow encasings against placebo encasings in children with asthma and dust mite allergy. The trial found that the active encasings produced a significant long-term reduction in dust mite allergen concentrations in mattresses over 12 months.
This is a finding of that independent study, reported here for general information. Individual results vary, and this product is intended to be used alongside other dust mite reduction measures.
Who this dust mite mattress protector is for
Best for standard-depth mattresses (18–28cm) where you want a dust mite barrier and waterproofing in one.
Commonly chosen by
- Anyone building a dust mite barrier across mattress, pillow, and quilt
- Households with standard-depth mattresses in the 18–28cm range
- Carers and households needing spill protection and an allergen barrier together
Probably not the right fit if
- Your mattress is deeper than 28cm — see our 24–33cm waterproof version
- You prefer 100% natural fibres — see our cotton mattress encasement (OEKO-TEX certified, not waterproof)
Sizing
Fits mattresses 18–28cm deep. The knitted jersey stretches to accommodate variations in mattress depth within this range. To fit: stand the mattress on its side, slide the encasement over from the open end, lay flat, then close the zipper and seal the Velcro flap.
Choosing the right depth
Measure your mattress depth from the top surface to where it rests on the base. For depths above 28cm, choose our 24–33cm version. The jersey has stretch so it can accommodate a mattress a few centimetres outside the stated range, but a close match is best.
Care
Wash before first use, then every 3–6 months — or sooner after a spill. Warm or gentle cycle, do not exceed 60°C. Skip bleach and fabric softeners to protect the TPU membrane.
Full care instructions
- Wash: warm or gentle cycle. Do not exceed 60°C — high heat can damage the TPU membrane over time.
- Dry: tumble dry low/medium or air dry. Avoid hot dryers.
- Frequency: every 3–6 months when a slip-on protector sits on top. Wash sooner after any spill or accident.
- Lifespan: over 4–5 years, body oils can gradually break down the TPU. A top protector significantly extends its life.
- Avoid: bleach, fabric softeners, dry cleaning, ironing, and any oils or strong detergents.
Dust mite mattress protector FAQs
Will this fit my mattress?
This protector fits mattresses 18–28cm deep. The knitted jersey stretches to accommodate slight variations. For deeper mattresses, choose the 24–33cm version.
What’s the difference between this and the cotton mattress encasement?
Both can be used as a barrier against dust mite particles. This waterproof version has a TPU lining that also blocks liquid spills. The cotton version is 100% natural cotton, OEKO-TEX certified, and more breathable, but not waterproof.
Does it feel like plastic?
No. The TPU membrane is laminated behind a soft polyester knitted jersey, so the surface feels like fabric. There’s no plastic crinkle.
Will it make me hot at night?
Less than a fully laminated PVC protector, but slightly more than a 100% cotton encasement. The TPU membrane is microporous — it allows water vapour through, so it breathes — but it’s not as breathable as natural fibre.
What does OEKO-TEX certified mean?
OEKO-TEX Standard 100 is an independent textile certification. This waterproof product is not OEKO-TEX certified — if OEKO-TEX certification is important to you, see our cotton mattress encasement.
Product Information
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Description
Dust mite mattress protector, 18–24cm — waterproof, zippered
A waterproof mattress encasement that seals your mattress on all six sides, keeping dust mite allergens trapped inside and blocking liquid spills.
Your mattress is one of the largest dust mite allergen reservoirs in the home.
The microporous TPU membrane creates a barrier against the fine particles that carry those allergens (typically 10–40 microns), while also being waterproof. A fitted mattress protector goes over the top.
What makes a dust mite mattress protector effective
A microporous TPU membrane with pores measured at around 0.16 microns — far smaller than the 10–40 micron particles that carry dust mite allergens — laminated behind a soft, silent jersey outer. Pore-size figures are supplied by the manufacturer, Fifth Ridge Pty Ltd, from third-party testing.
- Dust mite allergen barrier — pores well below allergen-particle size, so dust mite waste stays sealed inside the mattress and out of the air you breathe.
- Waterproof TPU barrier — blocks spills, sweat and incontinence; useful for aged care, bed-wetting, and illness.
- Breathable, not sweaty — the membrane is microporous, letting water vapour through so the protector still breathes.
- Velcro-locked zipper — a U-shape zipper sealed by a Velcro flap that stops the zip working open and closes the gap.
- Soft, silent, stretchy — the jersey outer feels like fabric, not plastic (no crinkle) and stretches to fit varied mattress depths.
The pore-size detail (third-party tested)
Dust mite allergens are carried by fecal pellets and body fragments that typically measure 10 to 40 microns. According to test data supplied by the manufacturer, Fifth Ridge Pty Ltd, this fabric’s TPU membrane has pores measured at approximately 0.16 microns at maximum distribution (third-party capillary flow porometry, Galwick fluid) — well below that range, which is why the fabric can be used as a particle barrier. The full zippered closure encloses all six sides of the mattress. We have not independently conducted this testing; the figures are reproduced in good faith from the manufacturer.
Materials & specifications
| Fabric outer | 90gsm polyester knitted jersey |
|---|---|
| Lining | 0.2mm microporous TPU (thermoplastic polyurethane) waterproof membrane |
| Pore size | Approximately 0.16 microns at maximum distribution (capillary flow porometry, Galwick fluid). Figures supplied by the manufacturer, Fifth Ridge Pty Ltd, from third-party testing. |
| Depth | Fits mattresses 18–28cm deep |
| Closure | Three-sided U-shape zipper with Velcro lock flap |
| Waterproof | Yes — TPU membrane blocks liquid spills |
| Warranty | 10-year product warranty (excludes misuse, improper washing, or damage) |
What the research says about mattress encasings
A 2003 randomised controlled trial published in the Journal of Allergy and Clinical Immunology (Halken et al.) tested mattress and pillow encasings against placebo encasings in children with asthma and dust mite allergy. The trial found that the active encasings produced a significant long-term reduction in dust mite allergen concentrations in mattresses over 12 months.
This is a finding of that independent study, reported here for general information. Individual results vary, and this product is intended to be used alongside other dust mite reduction measures.
Who this dust mite mattress protector is for
Best for standard-depth mattresses (18–28cm) where you want a dust mite barrier and waterproofing in one.
Commonly chosen by
- Anyone building a dust mite barrier across mattress, pillow, and quilt
- Households with standard-depth mattresses in the 18–28cm range
- Carers and households needing spill protection and an allergen barrier together
Probably not the right fit if
- Your mattress is deeper than 28cm — see our 24–33cm waterproof version
- You prefer 100% natural fibres — see our cotton mattress encasement (OEKO-TEX certified, not waterproof)
Sizing
Fits mattresses 18–28cm deep. The knitted jersey stretches to accommodate variations in mattress depth within this range. To fit: stand the mattress on its side, slide the encasement over from the open end, lay flat, then close the zipper and seal the Velcro flap.
Choosing the right depth
Measure your mattress depth from the top surface to where it rests on the base. For depths above 28cm, choose our 24–33cm version. The jersey has stretch so it can accommodate a mattress a few centimetres outside the stated range, but a close match is best.
Care
Wash before first use, then every 3–6 months — or sooner after a spill. Warm or gentle cycle, do not exceed 60°C. Skip bleach and fabric softeners to protect the TPU membrane.
Full care instructions
- Wash: warm or gentle cycle. Do not exceed 60°C — high heat can damage the TPU membrane over time.
- Dry: tumble dry low/medium or air dry. Avoid hot dryers.
- Frequency: every 3–6 months when a slip-on protector sits on top. Wash sooner after any spill or accident.
- Lifespan: over 4–5 years, body oils can gradually break down the TPU. A top protector significantly extends its life.
- Avoid: bleach, fabric softeners, dry cleaning, ironing, and any oils or strong detergents.
Dust mite mattress protector FAQs
Will this fit my mattress?
This protector fits mattresses 18–28cm deep. The knitted jersey stretches to accommodate slight variations. For deeper mattresses, choose the 24–33cm version.
What’s the difference between this and the cotton mattress encasement?
Both can be used as a barrier against dust mite particles. This waterproof version has a TPU lining that also blocks liquid spills. The cotton version is 100% natural cotton, OEKO-TEX certified, and more breathable, but not waterproof.
Does it feel like plastic?
No. The TPU membrane is laminated behind a soft polyester knitted jersey, so the surface feels like fabric. There’s no plastic crinkle.
Will it make me hot at night?
Less than a fully laminated PVC protector, but slightly more than a 100% cotton encasement. The TPU membrane is microporous — it allows water vapour through, so it breathes — but it’s not as breathable as natural fibre.
What does OEKO-TEX certified mean?
OEKO-TEX Standard 100 is an independent textile certification. This waterproof product is not OEKO-TEX certified — if OEKO-TEX certification is important to you, see our cotton mattress encasement.
