Tetra Cot Mattresses comply with Australian Firmness Standard AS/NZS 8811.1

Tetra Organic Baby Cot Mattress (Firm)

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Tetra Organic Firmly Filled Baby Cot Mattresses

If you are looking for a healthy cot mattress for your child then you've just discovered the most natural, organic and non-toxic mattress in Australia. Tetra Cot Mattresses are hand made to order at our factory in Sydney, Australia. Each mattress is filled with Australian Tea Tree Paperbark Flakes that are naturally anti-bacterial, naturally anti-allergy, naturally breathable and cool in summer and warm in winter.

Each organic Tetra Cot Mattress comes with a removable organic cotton cover already on it. These may be removed and washed (cold water only). If your size is not listed above, don’t panic, you can get a free quote for a custom mattress here

Healthy and Safe

Tetra Cot Mattresses are tested to comply to the Australian Standard AS_NZS 8811.1. Every Tetra cot mattress is triple-checked to be the exact size you have ordered before it leaves the factory.

Due to the organic nature of the Tea Tree Paperbark Flakes, the mattress filling may shift slightly during transit to your home which may result in the mattress seeming to be slightly smaller on arrival. This is very simply corrected in a matter of minutes as per the instructions provided in the packaging.

About Tetra Tea Tree

Tetra is Australia's most established natural bedding brand since 1949 we have been making tea tree flake filled baby mattresses and pillows that are the healthy, safe and sustainable choice for parents that want to reduce their children’s exposure to synthetics and chemicals.


Please note that due to hygiene standards there is a no refund or exchange policy on opened baby mattresses. to avoid disappointment please double-check the exact size baby mattress your cot, cradle, bassinet or Moses basket needs. Click here for instructions on how to find the mattress you need or order a custom mattress here.

Order lead time: Please note that orders are normally dispatched within 30 working days of full payment being received.

Customer Reviews

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*Applies to all Tetra brand except custom made sizes.