Bamboo vs Fibre Core Cot Mattresses: Which to Choose?
By Cuddleco | Published: 2026-10-26
Category: Buying Guides
Compare bamboo sprung and fibre core cot bed mattresses to find the best hypoallergenic support for your baby. Decision rules included.
Quick answer
Choose a bamboo sprung cot mattress for natural hypoallergenic comfort and breathability, or a fibre core mattress for a fresh, allergen-reducing sleep environment. Your decision depends on your baby's sensitivity and your priority on support versus active allergen reduction.
Understanding the two mattress types
Bamboo cot mattresses typically combine a natural bamboo fabric cover with a supportive sprung core, offering breathability and a cushioned surface. Fibre core mattresses use a solid fibre filling that provides uniform support and can incorporate treatments like Purotex probiotic to actively reduce allergens.
While both are hypoallergenic, the bamboo version emphasizes a soft, breathable sleep surface, whereas the fibre core focuses on allergen management and a firmer, more consistent feel.
Size considerations: 140x70cm vs 120x60cm
Standard cot bed mattresses come in 140x70cm and 120x60cm sizes. The larger 140x70cm fits most cot beds from birth to toddler, while the 120x60cm is common for smaller cot beds or Moses baskets. Always measure your cot bed before purchasing.
For a Moses basket, you need a dedicated mattress like the 75x28cm size, which is different from cot bed dimensions.
Trade-offs: support vs allergen reduction
A bamboo sprung mattress offers a traditional spring support that many parents find comfortable for their baby, with the added benefit of natural hypoallergenic properties. However, it does not actively reduce allergens; it only resists them.
A fibre core mattress with Purotex probiotic actively reduces common allergens like pet dander and dust mites, which is a key advantage if your baby has known allergies. The trade-off is a firmer, less cushioned feel compared to a sprung mattress.
Decision rules: bamboo vs fibre core
- Choose bamboo sprung if...: You want a breathable, naturally hypoallergenic mattress with spring support for your baby's cot bed. The Harmony Hypo-Allergenic Bamboo Sprung Cot Mattress is a good fit for standard 120x60cm cot beds.
- Choose fibre core if...: You prioritize active allergen reduction for a baby with known sensitivities. The Mother&Baby Fibre Core Cot Bed Mattress with Purotex is designed for 140x70cm cot beds and actively reduces pet dander and dust mites.
- For Moses baskets...: Neither cot mattress fits a Moses basket. Instead, choose a dedicated Moses basket mattress like the Little Me Hypo-Allergenic Bamboo Moses Basket Mattress (75x28cm) for a breathable, hypoallergenic sleep surface. Always measure your cot or basket before buying.
Product facts
- Harmony Hypo-Allergenic Bamboo Sprung Cot Mattress 120 x 60cm: The Harmony mattress features a handmade open coil spring system with a layer of nursery grade fibre, and a bamboo fabric cover with natural hypoallergenic properties. This provides a supportive, breathable sleep surface that is naturally resistant to allergens, ideal for babies who need a cushioned yet firm mattress.
Harmony Hypo-Allergenic Bamboo Sprung Cot Mattress 120 x 60cm - Mother&Baby Fibre Core Cot Bed Mattress with Purotex 140 x 70cm: The Mother&Baby Fibre Core Cot Mattress uses Purotex probiotic that is scientifically proven to actively reduce known allergens such as dog and cat hair and house dust mites. If your baby has allergies or you want proactive allergen management, this fibre core mattress offers active reduction rather than just resistance.
Mother&Baby Fibre Core Cot Bed Mattress with Purotex 140 x 70cm
Which mattress fits your baby?
Best for
- Babies who need a breathable, cushioned sleep surface with natural hypoallergenic properties
- Parents who prefer spring support and a soft bamboo fabric cover
Not for
- Babies with diagnosed allergies requiring active allergen reduction (choose fibre core instead)
- Moses baskets (need a dedicated Moses basket mattress)
