Cot Mattress Protector | Cotton | Zippered Encasement
Dust mite cot mattress protector — 100% cotton, zippered
A 100% cotton encasement that seals your cot mattress on all six sides, keeping dust mite allergens trapped inside rather than in the air around your child.
Cot mattresses accumulate skin cells over time, making them a dust mite allergen reservoir in the nursery.
The tightly woven cotton creates a barrier against the fine particles that carry those allergens (typically 10–40 microns), while staying soft and breathable. A fitted cot sheet goes over the top.
Safe sleep notice: This protector fits over the cot mattress, under your child’s fitted sheet — it is not loose bedding. Always follow Red Nose Australia’s safe sleeping guidance: place baby on their back, feet at the foot of the cot, and keep the cot bare of loose items for infants under 12 months. The sheet must fit snugly with no loose fabric on the sleep surface.
What makes a dust mite cot mattress protector (encasement) effective
A tightly woven 100% cotton fabric with pores measured at around 2.7 microns — far smaller than the 10–40 micron particles that carry dust mite allergens — sewn into a full encasement and sealed with enclosed binding seams.
- Dust mite allergen barrier — pores well below allergen-particle size, so dust mite waste stays sealed inside the cot mattress.
- Breathable natural cotton — a woven natural-fibre fabric that breathes, with no polyurethane laminate or plastic feel.
- OEKO-TEX certified — the cotton fabric carries OEKO-TEX Standard 100 certification, tested for over 100 substances of concern.
- Enclosed binding seams — the fabric edges are sealed inside a bound seam, so the barrier stays continuous along every join.
- Full zippered closure — fully encloses all six sides of the cot mattress.
- Two sizes — Standard (132×72×13cm) and Boori Cot (132×78×13cm).
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 (Sample 00022) has pores measured at approximately 2.7 microns at maximum distribution (third-party capillary flow porometry, Galwick fluid) — well below that range. The full zippered closure and enclosed binding seams keep the barrier continuous around all six sides of the cot mattress. We have not independently conducted this testing; the figures are reproduced in good faith from the manufacturer.
Materials & specifications
| Fabric | 100% cotton, tightly woven |
|---|---|
| Pore size | Approximately 2.7 microns at maximum distribution (capillary flow porometry, Galwick fluid). Figures supplied by the manufacturer, Fifth Ridge Pty Ltd, from third-party testing. |
| Certification | OEKO-TEX Standard 100, as stated by the manufacturer (tested for over 100 substances of concern) |
| Sizes | Standard 132×72×13cm | Boori Cot 132×78×13cm |
| Closure | Full zippered closure, encloses all six sides |
| Seams | Enclosed binding seams that keep the barrier continuous along each join |
| 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 cot mattress protector (encasement) is for
Best for parents wanting a breathable cotton dust mite barrier on a standard or Boori cot mattress.
Commonly chosen by
- Anyone building a dust mite barrier across the home, including the nursery
- Parents who prefer 100% natural cotton without polyurethane laminates or synthetic fibres
- Parents who want OEKO-TEX certified bedding under their child’s fitted sheet
Probably not the right fit if
- You need waterproof protection — see our waterproof cot mattress protector
- Your cot mattress differs significantly from the listed sizes — measure first and contact us if unsure
How to fit it safely
Fitting correctly matters for both barrier integrity and safe sleep. The protector must sit flat with no loose fabric on the sleep surface.
Step-by-step fitting
- Remove the cot mattress and any existing bedding.
- Unzip the encasement fully and slide it over the mattress, ensuring all six sides are covered.
- Close the zipper completely — there should be no gap.
- Smooth the fabric flat with no loose, bunched, or excess fabric on the sleep surface.
- Place the cot mattress back in the cot.
- Fit a tight-fitting cot sheet over the top — snug with no loose fabric or wrinkles.
- Follow Red Nose Australia safe sleeping guidance: keep the cot bare with no pillows, blankets, soft toys, or padded items for infants under 12 months.
Choosing the right size
Measure your cot mattress before ordering — cotton has minimal stretch so a close match is important. Standard Australian cot mattresses are 132×72cm; Boori-brand cots take 132×78cm mattresses. Both are 13cm deep. If your cot mattress differs significantly from these dimensions, contact us before ordering.
Care
Wash before first use. Then every 3–6 months — a warm or gentle cycle, do not exceed 60°C. Skip bleach and fabric softeners.
Full care instructions
- Before first use: wash the encasement before fitting, to remove any production residues (manufacturer-recommended).
- Wash: warm or gentle cycle. Do not exceed 60°C.
- Dry: tumble dry low/medium or air dry.
- Frequency: every 3–6 months is generally enough when a fitted sheet sits on top. That sheet gets washed regularly with your child’s linen.
- Avoid: bleach, fabric softeners, dry cleaning, and any oils or strong detergents.
Dust mite cot mattress protector (encasement) FAQs
Will it fit my cot mattress?
Measure your cot mattress before ordering. Standard Australian cot mattresses are 132×72cm; Boori-brand cots take 132×78cm. Cotton has minimal stretch, so a close size match matters. Contact us if your mattress differs significantly from these sizes.
Is this safe for infants?
The fabric is OEKO-TEX Standard 100 certified — every component has been independently tested for over 100 substances of concern. The protector fits over the cot mattress under a tight-fitting cot sheet — it is not loose bedding inside the cot. Always follow Red Nose Australia’s safe sleeping guidance.
What’s the difference between this and the waterproof cot protector?
Both can be used as a barrier against dust mite particles. This cotton version is 100% natural cotton, OEKO-TEX certified, and more breathable, but it is not waterproof. The waterproof cot protector also blocks liquid spills and accidents — better for younger infants or during toilet training.
Should I discuss this with my GP or paediatrician first?
If your child has a diagnosed allergy, eczema, asthma, or any other medical condition, yes — your GP, paediatrician, or allergist is the right person to advise on whether barrier bedding suits your child’s situation. We describe what the fabric measurably does; we don’t make claims about medical conditions.
What does OEKO-TEX certified mean?
OEKO-TEX Standard 100 is an independent textile certification confirming the fabric has been tested for more than 100 substances of concern. It certifies the absence of those substances in the fabric; it is not a certification of suitability for any specific medical condition.
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Cot Mattress Protector | Cotton | Zippered Encasement
Dust mite cot mattress protector — 100% cotton, zippered
A 100% cotton encasement that seals your cot mattress on all six sides, keeping dust mite allergens trapped inside rather than in the air around your child.
Cot mattresses accumulate skin cells over time, making them a dust mite allergen reservoir in the nursery.
The tightly woven cotton creates a barrier against the fine particles that carry those allergens (typically 10–40 microns), while staying soft and breathable. A fitted cot sheet goes over the top.
Safe sleep notice: This protector fits over the cot mattress, under your child’s fitted sheet — it is not loose bedding. Always follow Red Nose Australia’s safe sleeping guidance: place baby on their back, feet at the foot of the cot, and keep the cot bare of loose items for infants under 12 months. The sheet must fit snugly with no loose fabric on the sleep surface.
What makes a dust mite cot mattress protector (encasement) effective
A tightly woven 100% cotton fabric with pores measured at around 2.7 microns — far smaller than the 10–40 micron particles that carry dust mite allergens — sewn into a full encasement and sealed with enclosed binding seams.
- Dust mite allergen barrier — pores well below allergen-particle size, so dust mite waste stays sealed inside the cot mattress.
- Breathable natural cotton — a woven natural-fibre fabric that breathes, with no polyurethane laminate or plastic feel.
- OEKO-TEX certified — the cotton fabric carries OEKO-TEX Standard 100 certification, tested for over 100 substances of concern.
- Enclosed binding seams — the fabric edges are sealed inside a bound seam, so the barrier stays continuous along every join.
- Full zippered closure — fully encloses all six sides of the cot mattress.
- Two sizes — Standard (132×72×13cm) and Boori Cot (132×78×13cm).
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 (Sample 00022) has pores measured at approximately 2.7 microns at maximum distribution (third-party capillary flow porometry, Galwick fluid) — well below that range. The full zippered closure and enclosed binding seams keep the barrier continuous around all six sides of the cot mattress. We have not independently conducted this testing; the figures are reproduced in good faith from the manufacturer.
Materials & specifications
| Fabric | 100% cotton, tightly woven |
|---|---|
| Pore size | Approximately 2.7 microns at maximum distribution (capillary flow porometry, Galwick fluid). Figures supplied by the manufacturer, Fifth Ridge Pty Ltd, from third-party testing. |
| Certification | OEKO-TEX Standard 100, as stated by the manufacturer (tested for over 100 substances of concern) |
| Sizes | Standard 132×72×13cm | Boori Cot 132×78×13cm |
| Closure | Full zippered closure, encloses all six sides |
| Seams | Enclosed binding seams that keep the barrier continuous along each join |
| 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 cot mattress protector (encasement) is for
Best for parents wanting a breathable cotton dust mite barrier on a standard or Boori cot mattress.
Commonly chosen by
- Anyone building a dust mite barrier across the home, including the nursery
- Parents who prefer 100% natural cotton without polyurethane laminates or synthetic fibres
- Parents who want OEKO-TEX certified bedding under their child’s fitted sheet
Probably not the right fit if
- You need waterproof protection — see our waterproof cot mattress protector
- Your cot mattress differs significantly from the listed sizes — measure first and contact us if unsure
How to fit it safely
Fitting correctly matters for both barrier integrity and safe sleep. The protector must sit flat with no loose fabric on the sleep surface.
Step-by-step fitting
- Remove the cot mattress and any existing bedding.
- Unzip the encasement fully and slide it over the mattress, ensuring all six sides are covered.
- Close the zipper completely — there should be no gap.
- Smooth the fabric flat with no loose, bunched, or excess fabric on the sleep surface.
- Place the cot mattress back in the cot.
- Fit a tight-fitting cot sheet over the top — snug with no loose fabric or wrinkles.
- Follow Red Nose Australia safe sleeping guidance: keep the cot bare with no pillows, blankets, soft toys, or padded items for infants under 12 months.
Choosing the right size
Measure your cot mattress before ordering — cotton has minimal stretch so a close match is important. Standard Australian cot mattresses are 132×72cm; Boori-brand cots take 132×78cm mattresses. Both are 13cm deep. If your cot mattress differs significantly from these dimensions, contact us before ordering.
Care
Wash before first use. Then every 3–6 months — a warm or gentle cycle, do not exceed 60°C. Skip bleach and fabric softeners.
Full care instructions
- Before first use: wash the encasement before fitting, to remove any production residues (manufacturer-recommended).
- Wash: warm or gentle cycle. Do not exceed 60°C.
- Dry: tumble dry low/medium or air dry.
- Frequency: every 3–6 months is generally enough when a fitted sheet sits on top. That sheet gets washed regularly with your child’s linen.
- Avoid: bleach, fabric softeners, dry cleaning, and any oils or strong detergents.
Dust mite cot mattress protector (encasement) FAQs
Will it fit my cot mattress?
Measure your cot mattress before ordering. Standard Australian cot mattresses are 132×72cm; Boori-brand cots take 132×78cm. Cotton has minimal stretch, so a close size match matters. Contact us if your mattress differs significantly from these sizes.
Is this safe for infants?
The fabric is OEKO-TEX Standard 100 certified — every component has been independently tested for over 100 substances of concern. The protector fits over the cot mattress under a tight-fitting cot sheet — it is not loose bedding inside the cot. Always follow Red Nose Australia’s safe sleeping guidance.
What’s the difference between this and the waterproof cot protector?
Both can be used as a barrier against dust mite particles. This cotton version is 100% natural cotton, OEKO-TEX certified, and more breathable, but it is not waterproof. The waterproof cot protector also blocks liquid spills and accidents — better for younger infants or during toilet training.
Should I discuss this with my GP or paediatrician first?
If your child has a diagnosed allergy, eczema, asthma, or any other medical condition, yes — your GP, paediatrician, or allergist is the right person to advise on whether barrier bedding suits your child’s situation. We describe what the fabric measurably does; we don’t make claims about medical conditions.
What does OEKO-TEX certified mean?
OEKO-TEX Standard 100 is an independent textile certification confirming the fabric has been tested for more than 100 substances of concern. It certifies the absence of those substances in the fabric; it is not a certification of suitability for any specific medical condition.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Dust mite cot mattress protector — 100% cotton, zippered
A 100% cotton encasement that seals your cot mattress on all six sides, keeping dust mite allergens trapped inside rather than in the air around your child.
Cot mattresses accumulate skin cells over time, making them a dust mite allergen reservoir in the nursery.
The tightly woven cotton creates a barrier against the fine particles that carry those allergens (typically 10–40 microns), while staying soft and breathable. A fitted cot sheet goes over the top.
Safe sleep notice: This protector fits over the cot mattress, under your child’s fitted sheet — it is not loose bedding. Always follow Red Nose Australia’s safe sleeping guidance: place baby on their back, feet at the foot of the cot, and keep the cot bare of loose items for infants under 12 months. The sheet must fit snugly with no loose fabric on the sleep surface.
What makes a dust mite cot mattress protector (encasement) effective
A tightly woven 100% cotton fabric with pores measured at around 2.7 microns — far smaller than the 10–40 micron particles that carry dust mite allergens — sewn into a full encasement and sealed with enclosed binding seams.
- Dust mite allergen barrier — pores well below allergen-particle size, so dust mite waste stays sealed inside the cot mattress.
- Breathable natural cotton — a woven natural-fibre fabric that breathes, with no polyurethane laminate or plastic feel.
- OEKO-TEX certified — the cotton fabric carries OEKO-TEX Standard 100 certification, tested for over 100 substances of concern.
- Enclosed binding seams — the fabric edges are sealed inside a bound seam, so the barrier stays continuous along every join.
- Full zippered closure — fully encloses all six sides of the cot mattress.
- Two sizes — Standard (132×72×13cm) and Boori Cot (132×78×13cm).
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 (Sample 00022) has pores measured at approximately 2.7 microns at maximum distribution (third-party capillary flow porometry, Galwick fluid) — well below that range. The full zippered closure and enclosed binding seams keep the barrier continuous around all six sides of the cot mattress. We have not independently conducted this testing; the figures are reproduced in good faith from the manufacturer.
Materials & specifications
| Fabric | 100% cotton, tightly woven |
|---|---|
| Pore size | Approximately 2.7 microns at maximum distribution (capillary flow porometry, Galwick fluid). Figures supplied by the manufacturer, Fifth Ridge Pty Ltd, from third-party testing. |
| Certification | OEKO-TEX Standard 100, as stated by the manufacturer (tested for over 100 substances of concern) |
| Sizes | Standard 132×72×13cm | Boori Cot 132×78×13cm |
| Closure | Full zippered closure, encloses all six sides |
| Seams | Enclosed binding seams that keep the barrier continuous along each join |
| 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 cot mattress protector (encasement) is for
Best for parents wanting a breathable cotton dust mite barrier on a standard or Boori cot mattress.
Commonly chosen by
- Anyone building a dust mite barrier across the home, including the nursery
- Parents who prefer 100% natural cotton without polyurethane laminates or synthetic fibres
- Parents who want OEKO-TEX certified bedding under their child’s fitted sheet
Probably not the right fit if
- You need waterproof protection — see our waterproof cot mattress protector
- Your cot mattress differs significantly from the listed sizes — measure first and contact us if unsure
How to fit it safely
Fitting correctly matters for both barrier integrity and safe sleep. The protector must sit flat with no loose fabric on the sleep surface.
Step-by-step fitting
- Remove the cot mattress and any existing bedding.
- Unzip the encasement fully and slide it over the mattress, ensuring all six sides are covered.
- Close the zipper completely — there should be no gap.
- Smooth the fabric flat with no loose, bunched, or excess fabric on the sleep surface.
- Place the cot mattress back in the cot.
- Fit a tight-fitting cot sheet over the top — snug with no loose fabric or wrinkles.
- Follow Red Nose Australia safe sleeping guidance: keep the cot bare with no pillows, blankets, soft toys, or padded items for infants under 12 months.
Choosing the right size
Measure your cot mattress before ordering — cotton has minimal stretch so a close match is important. Standard Australian cot mattresses are 132×72cm; Boori-brand cots take 132×78cm mattresses. Both are 13cm deep. If your cot mattress differs significantly from these dimensions, contact us before ordering.
Care
Wash before first use. Then every 3–6 months — a warm or gentle cycle, do not exceed 60°C. Skip bleach and fabric softeners.
Full care instructions
- Before first use: wash the encasement before fitting, to remove any production residues (manufacturer-recommended).
- Wash: warm or gentle cycle. Do not exceed 60°C.
- Dry: tumble dry low/medium or air dry.
- Frequency: every 3–6 months is generally enough when a fitted sheet sits on top. That sheet gets washed regularly with your child’s linen.
- Avoid: bleach, fabric softeners, dry cleaning, and any oils or strong detergents.
Dust mite cot mattress protector (encasement) FAQs
Will it fit my cot mattress?
Measure your cot mattress before ordering. Standard Australian cot mattresses are 132×72cm; Boori-brand cots take 132×78cm. Cotton has minimal stretch, so a close size match matters. Contact us if your mattress differs significantly from these sizes.
Is this safe for infants?
The fabric is OEKO-TEX Standard 100 certified — every component has been independently tested for over 100 substances of concern. The protector fits over the cot mattress under a tight-fitting cot sheet — it is not loose bedding inside the cot. Always follow Red Nose Australia’s safe sleeping guidance.
What’s the difference between this and the waterproof cot protector?
Both can be used as a barrier against dust mite particles. This cotton version is 100% natural cotton, OEKO-TEX certified, and more breathable, but it is not waterproof. The waterproof cot protector also blocks liquid spills and accidents — better for younger infants or during toilet training.
Should I discuss this with my GP or paediatrician first?
If your child has a diagnosed allergy, eczema, asthma, or any other medical condition, yes — your GP, paediatrician, or allergist is the right person to advise on whether barrier bedding suits your child’s situation. We describe what the fabric measurably does; we don’t make claims about medical conditions.
What does OEKO-TEX certified mean?
OEKO-TEX Standard 100 is an independent textile certification confirming the fabric has been tested for more than 100 substances of concern. It certifies the absence of those substances in the fabric; it is not a certification of suitability for any specific medical condition.
