A cot spends more hours in contact with a sleeping infant than almost any other piece of nursery furniture, and the mattress inside it carries more of the safety responsibility than the cot frame itself: it needs to sit flush against every side of the base with no gap a limb or face could slip into, firm enough that a newborn cannot sink into it, and free of any loose or damaged cover. The best cot mattress in Australia is chosen on fit and firmness first, ahead of thickness or cover fabric, because a mattress that does not match its cot’s exact base size undoes almost every other safety feature it has.
Cot mattresses sold in Australia fall into a few common constructions: foam mattresses built from a single density-rated foam core, pocket spring mattresses using individually wrapped coils for even support, hybrid mattresses combining foam or latex layers with a spring or gel core, and dual-firmness mattresses with a firmer newborn side and a slightly softer toddler side in one product.
Australia’s standard cot base measures 1300mm x 690mm (about 51 x 27 inches), and the applicable safety standard is AS/NZS 8811.1, which covers firmness, flatness and fit. A mattress advertised loosely as “cot size” without stating its own dimensions is the most common way buyers end up with a genuine gap around the edges rather than a snug fit.
This guide compares ten cot mattresses available to Australian buyers, spanning foam, pocket spring, Bonnell spring and hybrid constructions at different price points. Anyone setting up a new nursery from scratch should also see this site’s guide to the best baby monitors for the other side of overnight nursery safety.
Best Cot Mattress Australia Compared
| Product | Link | Type | Best For | Key Spec |
|---|---|---|---|---|
| Newton Baby Essential Cot Mattress | Check price | Foam (Wovenaire) | Breathability and easy cleaning | GREENGUARD Gold Certified, washable |
| BambooNest Luxe Cot Mattress | Check price | Hybrid (pocket spring + foam + latex) | Growing babies needing added support | 5D mesh side panels, bamboo cover |
| ClevaMama Mattress for Cot and Crib | Check price | Gel foam, rotatable | Allergy-prone babies | Allergy Standards Ltd certified; UK cot size, check fit |
| ComfortNest Cot Mattress | Check price | Pocket spring | Firm, flat AS/NZS-tested support | AS/NZS 5407.1:2025 tested |
| PlayPals Cot Mattress | Check price | Pocket spring (242 springs) | Reduced motion transfer, documented standards | Cites AS/NZS 8811.1:2013 |
| Babyworth Innerspring Cot Mattress | Check price | Innerspring | Established brand at a lower price | Complies with AS/NZS 8811.1:2013 |
| Love N Care Shell Innerspring Cot Mattress | Check price | Innerspring | Long spring warranty from an established brand | 6 year spring warranty |
| Bedra Bedding 13cm Cot Mattress | Check price | Bonnell spring | Independently certified materials | OEKO-TEX and CertiPUR certified |
| Giselle Bedding Cot Mattress | Check price | Foam, double-sided | Lowest price without going unbranded | 28D high-density foam, Tencel cover |
| Gel Memory Foam Double-Sided Cot Mattress | Check price | Gel memory foam, reversible | Reversible firmness as a baby grows | 71cm x 130cm, medium-firm/firm sides |
1. Newton Baby Essential Cot Mattress – Best Breathable Core
The Essential’s core is Newton’s own Wovenaire material, a woven polymer structure rather than traditional foam, sitting inside a fully washable cover. At 132cm x 71cm x 11cm it matches the Australian standard cot base closely, and the whole mattress is rated GREENGUARD Gold Certified for low chemical emissions, with no vinyl or PVC in its construction.
The open woven structure is designed to stay breathable if a baby rolls face-down against it, which the brand positions as the main point of difference from a foam mattress that can trap warm air against the face. Both the cover and the Wovenaire core itself are washable, the cover by machine and the core by hand with soap and water, which matters given how often a cot mattress needs cleaning in the first year.
This suits a family prioritising the breathability claim above all else, and the mattress is rated to convert through to toddler use on the same base rather than needing replacement at that stage. It sits at the top of this comparison’s price range, and a family working to a tighter budget is better served by the pocket spring option below at a similar level of safety testing.
Pros
- Wovenaire core designed to stay breathable under a baby’s face
- GREENGUARD Gold Certified, no vinyl or PVC
- Fully washable cover and core; rated for use through to toddler age
Cons
- Highest price in this comparison
- Firmness is fixed, with no newborn/toddler dual-firmness option
Key specs: 132cm x 71cm x 11cm; Wovenaire core; GREENGUARD Gold Certified; 5kg.
CHECK ON AMAZON2. BambooNest Luxe Cot Mattress – Best Hybrid Support
The Luxe combines three support layers in one mattress: an individual pocket spring base, a gel memory foam layer positioned for newborn comfort, and a natural latex layer the brand positions as added support as a baby grows heavier and more mobile. A bamboo cover wraps the whole mattress and is removable and washable.
Five-panel mesh side inserts run around the mattress edge for airflow, sitting alongside the pocket spring base rather than replacing it, and the listing states the mattress is tested to Australian and New Zealand standards for firmness, flatness and infant sleep safety, though it does not cite a specific standard number the way some of the other mattresses in this comparison do.
This suits a family wanting a hybrid mattress that can flex with a baby’s changing weight over time rather than a single-density foam block. A family that prefers a mattress citing an exact AS/NZS standard number should compare the ComfortNest entry below instead.
Pros
- Three-layer hybrid: pocket springs, gel memory foam, natural latex
- Removable, washable bamboo cover
- 5D mesh side panels for airflow
Cons
- Second-highest price in this comparison
- Safety claim does not cite a specific AS/NZS standard number
Key specs: Pocket spring + gel memory foam + natural latex hybrid; bamboo cover; 5D mesh side panels.
CHECK ON AMAZON3. ClevaMama Mattress for Cot and Crib – Best for Allergies
The ClevaMama pairs a cool gel surface with a sensitive foam layer underneath, and the mattress is rotatable between the two, giving a firmer all-foam side and a gel-topped side as an alternative sleep surface. A double cover, a protective inner layer plus a washable outer layer, adds a second barrier against spills and nappy leaks.
It carries a genuine third-party certification: Allergy Standards Ltd lists it as asthma and allergy friendly, which is a checkable claim rather than marketing language, and the gel layer is designed to disperse body heat rather than trap it against the mattress surface. One important check before buying: this listing’s stated size is 60cm x 120cm, which matches the UK cot standard rather than the Australian standard cot base of 69cm x 130cm, so measuring the cot base before ordering matters more here than with the other mattresses in this guide.
This suits a family with a known allergy or asthma history in the household wanting a specifically certified mattress, provided their cot base is confirmed to fit the UK-sized dimensions. A family with a standard Australian cot base should measure carefully or choose one of the AU-dimensioned mattresses elsewhere in this comparison instead.
Pros
- Allergy Standards Ltd certified asthma and allergy friendly
- Rotatable between a firm foam side and a cooling gel side
- Double cover for extra spill protection
Cons
- Stated size (60cm x 120cm) matches the UK cot standard, not the Australian 69cm x 130cm base
- Limited stock at the time of writing
Key specs: 60cm x 120cm x 11cm; cool gel + sensitive foam; Allergy Standards Ltd certified; rotatable.
CHECK ON AMAZON4. ComfortNest Cot Mattress – Best Firm and Flat
The ComfortNest uses an individual pocket spring system under a 10mm foam comfort layer, quilted into a polyester cover, aimed squarely at the firm, flat sleep surface safe-sleep guidance calls for rather than a plush feel. An anti-static cover sits over the springs to protect them and keep the surface consistent over time.
This is the only mattress in this comparison whose listing cites a specific, current standard number: AS/NZS 5407.1:2025 for firmness, flatness and safety, alongside stated compliance with the Infant Sleep Products Information Standard 2024. That specificity is a genuine point of difference from mattresses that only claim to meet Australian standards without naming one.
This suits a family wanting the clearest paper trail on safety testing at the lowest price in this comparison, accepting a firmer feel than the hybrid or gel-topped options above. A family prioritising a softer sleep surface over firmness testing is better served by the BambooNest or ClevaMama entries instead.
Pros
- Cites a specific current standard: AS/NZS 5407.1:2025
- Firm, flat pocket spring support matches safe-sleep guidance
- Lowest price in this comparison
Cons
- Firmer feel than the hybrid and gel-topped mattresses above
- Thinner comfort layer (10mm) than the other entries
Key specs: Individual pocket spring; 10mm foam comfort layer; AS/NZS 5407.1:2025 tested; anti-static cover.
CHECK ON AMAZON5. PlayPals Cot Mattress – Best Pocket Spring Count
PlayPals uses 242 individually wrapped pocket springs under a high-density foam comfort layer, a genuinely higher spring count than a typical innerspring cot mattress, aimed at reducing motion transfer between different points on the surface. A Tencel and polyester knit cover wraps the whole mattress.
The listing cites three specific standards by name: the Consumer Goods (Infant Products) Information Standard 2024, the Consumer Goods (Infant Sleep Products) Safety Standard 2024, and AS/NZS 8811.1:2013, more named citations than any other mattress in this comparison. Reinforced edges and anti-sag foam are aimed at keeping that support consistent over the mattress’s warranty period.
This suits a family wanting the clearest documented safety trail alongside genuinely reduced motion transfer between sleep positions. Stock has run low on this listing before, so anyone set on this specific mattress should check current availability before relying on it.
Pros
- 242 individually wrapped pocket springs reduce motion transfer
- Cites three specific named safety and information standards
- 1 year warranty
Cons
- Stock has run low on this listing previously
- Medium-firm feel rather than the firmest option in this comparison
Key specs: 132cm x 70cm x 10cm; 242 pocket springs; cites AS/NZS 8811.1:2013; 1 year warranty.
CHECK ON AMAZON6. Babyworth Innerspring Cot Mattress – Best Value Innerspring
Babyworth is an established Australian nursery brand selling this innerspring mattress directly through its own site as well as through this listing, built around a tempered steel spring system with steel edge banding to reinforce the outer coils.
Babyworth’s own product page states the mattress complies with AS/NZS 8811.1:2013, the same Australian and New Zealand cot mattress standard cited elsewhere in this comparison, and the brand sells this same construction across several size options to fit different cot bases, not just one fixed dimension.
This suits a family wanting a straightforward innerspring mattress from an established Australian nursery brand at one of the lower prices in this comparison. It does not carry the added breathability or hybrid-material features of the pricier entries above, just a solid, standard construction.
Pros
- Established Australian nursery brand, sold directly and through this listing
- Complies with AS/NZS 8811.1:2013
- Sold across several size options to match different cot bases
Cons
- No added breathability or hybrid-material features of the pricier entries above
- Standard innerspring construction without a distinguishing comfort layer
Key specs: Steel spring system with edge banding; complies with AS/NZS 8811.1:2013; multiple size options.
CHECK ON AMAZON7. Love N Care Shell Innerspring Cot Mattress – Best Spring Warranty
Love N Care is another established Australian nursery brand, and the Shell mattress pairs an orthopaedic foam comfort layer with a high-density, thermo-bonded innerspring core and side air vents for airflow through the mattress body.
The listing backs the springs specifically with a 6 year warranty, longer than the general warranty terms most other mattresses in this comparison state, which is a genuine point of difference for a family expecting to use one mattress across multiple children or several years.
This suits a family wanting a long-warrantied mattress from an established brand and is willing to pay above the lower-priced entries in this comparison for that reassurance. A family on a tighter budget is better served by one of the lower-cost options elsewhere in this guide.
Pros
- 6 year warranty specifically on the spring system
- Established Australian nursery brand
- Side air vents for airflow through the mattress
Cons
- Priced above most of the other mattresses in this comparison
- No breathable-core marketing claim like the top-priced entries above
Key specs: High-density thermo-bonded innerspring; side air vents; 6 year spring warranty.
CHECK ON AMAZON8. Bedra Bedding 13cm Cot Mattress – Best Certified Bonnell Spring
Bedra’s mattress uses a Bonnell spring system, a four-layer construction wrapped in a non-woven knitted fabric cover, positioned around motion isolation so movement on one side of the mattress is less noticeable on the other.
It carries two genuine third-party certifications: OEKO-TEX for the fabric and CertiPUR for the foam layer, both checkable certification programs rather than self-declared marketing claims, alongside a hypoallergenic, dust mite and mould resistant finish.
This suits a family wanting independently certified materials at a mid-to-low price point in this comparison. The Bonnell spring system is a simpler, older coil design than the individually wrapped pocket springs used in some of the pricier entries above, though it still meets the same basic support requirement.
Pros
- OEKO-TEX certified fabric and CertiPUR certified foam
- Bonnell spring system aimed at reducing motion transfer
- Reinforced edging
Cons
- Bonnell springs are a simpler, older coil design than individually wrapped pocket springs
- Fewer named safety standard citations than the PlayPals or ComfortNest entries above
Key specs: 13cm; Bonnell spring, 4-layer construction; OEKO-TEX and CertiPUR certified.
CHECK ON AMAZON9. Giselle Bedding Cot Mattress – Best Budget Double-Sided
Giselle Bedding’s 11cm mattress uses 28D high-density foam under a Tencel air-layer cover, with a double-sided design and reinforced edge support aimed at preventing the sagging a single-sided budget mattress can develop with regular use.
The dual inner-and-outer cover design and knitted breathable fabric are aimed at temperature regulation, and the washable, removable zipped cover is a genuine practical feature at this price point. The listing notes the mattress needs about a day to fully restore its shape after unpacking, typical of a compressed foam-in-a-box product.
This suits a family wanting the lowest price in this comparison without dropping to an unbranded generic mattress, and the double-sided design extends its usable life. A family wanting a hybrid material, certified spring system, or a specific named safety standard citation is better served by one of the other entries in this guide.
Pros
- Lowest price in this comparison
- Double-sided design with reinforced edges for even wear
- Washable, removable zipped cover
Cons
- No named safety standard citation on the listing, unlike several other entries here
- Needs about a day to fully expand after unpacking
Key specs: 11cm; 28D high-density foam; Tencel air-layer cover; double-sided.
CHECK ON AMAZON10. Gel Memory Foam Double-Sided Cot Mattress – Best Reversible Firmness
This double-sided mattress pairs a gel memory foam layer with a high-density support foam layer, sized at 71cm by 130cm to fit a standard cot base without needing an additional foundation, and flips between a medium-firm white side and a firmer grey side.
The reversible design is the main practical feature: rather than replacing the mattress as it wears, flipping it extends useful life and lets a family choose the firmer side as a baby grows heavier. A removable, zip-off knitted cover handles regular washing.
This suits a family wanting a genuinely reversible firmness option at one of the lower prices in this comparison. It is a less established brand than several other entries here, so anyone prioritising brand reputation or a named certification should compare it against the Babyworth or Love N Care entries instead.
Pros
- Reversible medium-firm and firm sides in one mattress
- Sized to fit a standard cot base without extra foundation
- Removable, washable knitted cover
Cons
- Less established brand than several other entries in this comparison
- No named safety standard citation on the listing
Key specs: 71cm x 130cm x 13cm; gel memory foam and support foam; reversible medium-firm/firm; washable cover.
CHECK ON AMAZONHow to Choose a Cot Mattress
Measure the cot base before choosing a mattress. Australia’s standard cot base is 1300mm x 690mm, but imported cots and portable cots can differ, and a mattress sized for a UK or US cot will not fit an Australian base snugly even if it is labelled “cot size.” Measure the actual base, not the mattress packaging.
Check for a named safety standard, not just a general claim. A listing that states AS/NZS 8811.1 or the newer AS/NZS 5407.1:2025 by name has something specific to verify. A listing that only says it meets Australian safety standards without naming one is making a harder claim to check.
Firm and flat matters more than plush. Current safe-sleep guidance for infants under 12 months calls for a firm, flat sleep surface rather than a soft one, which is the opposite of what feels comfortable to an adult hand pressing on it. A mattress that visibly indents under light pressure is firmer to a baby’s weight than it feels to a shopping adult, but genuinely soft mattresses should still be avoided.
Breathability reduces but does not replace safe-sleep practice. A breathable core or mesh side panel is a genuine design feature, but it does not substitute for placing a baby on their back with no loose bedding, bumpers or soft toys in the cot. Anyone new to nursery safety more broadly should see this site’s guide to the best baby monitors in Australia for the other side of overnight monitoring.
Plan for a cover that can be washed often. A cot mattress gets soiled far more often in the first year than an adult mattress, so a removable, machine-washable cover saves buying a second mattress out of frustration alone. A double-cover design, an inner waterproof layer plus an outer fabric layer, holds up better to repeated washing than a single cover.
Dual-firmness and hybrid designs cost more for a reason. A single-density foam mattress is the cheapest way to meet the firmness requirement, but a hybrid or dual-sided mattress can extend from newborn through toddler use on one product. Whether that is worth the extra cost depends on whether the family plans to keep the same cot base that long.
Frequently Asked Questions
What size is a standard cot mattress in Australia?
The standard Australian cot base measures 1300mm x 690mm (about 51 x 27 inches). Imported mattresses, particularly from UK or US brands, can be sized differently, so it is worth measuring the actual cot base before ordering rather than trusting a “cot size” label alone.
How firm should a cot mattress be?
Firm and flat, not plush. Current safe-sleep guidance for infants recommends a firm sleep surface that does not indent deeply under a baby’s weight, which reduces suffocation risk compared with a soft mattress a baby could sink into.
What does AS/NZS 8811.1 cover?
It is the Australian and New Zealand standard covering cot mattress firmness, flatness and fit against a standard cot base. A newer version, AS/NZS 5407.1:2025, has also started appearing on current listings; either citation is a specific, checkable claim rather than a general “meets safety standards” statement.
Is foam or pocket spring better for a cot mattress?
Both can meet the same firmness and safety requirements; the difference is mainly in feel and durability rather than one being inherently safer. A pocket spring mattress tends to hold its shape longer under repeated use, while a single-density foam mattress is usually the lighter and cheaper option.
Can I use a cot mattress for a bassinet or portable cot instead?
No, not safely. A standard cot mattress is sized for a standard cot base and will leave a gap around the edges of a smaller bassinet or portable cot, which is exactly the fit problem safe-sleep guidance warns against. Use a mattress sized for that specific product instead.
How often should a cot mattress be replaced?
There is no fixed replacement schedule, but a mattress with a sagging surface, a damaged cover, or visible mould or staining that will not wash out should be replaced regardless of age. Many families do replace the mattress between a first and second child as a matter of hygiene rather than any specific defect.
Verdict
Fit against the actual cot base decides more of this comparison than any single feature. The Newton Baby Essential is the strongest all-round pick where breathability and certification matter most, the ComfortNest and PlayPals are the clearest choices for a named, current safety standard at a lower price, and the Giselle Bedding is the sensible budget pick for a family not chasing a specific certification. The ClevaMama is worth considering only after confirming its UK-sized dimensions against the cot in question.
