Until recently, there was no way of telling whether a cot mattress was firm enough to be safe for your baby. Even now, mattresses can be legally sold without officially meeting any product safety requirements. However, responsible manufacturers test their mattresses to the voluntary standard AS/NZ 8811.1:2013, which outlines a method to detect mattress firmness.
Our results show:
- which cot mattresses passed the firmness test, which involves placing a test apparatus at various locations around the mattress (including a worst-case scenario location decided on by the tester) and seeing whether it sinks too deeply into the surface.
- whether the claimed measurements match up with the actual measurements. We score a mattress down if the thickness is significantly more than stated, as this could end up being a fall risk depending on the depth of the cot (a cot should be a minimum of 50cm when the base is set in the lowest position, and 30cm in the upper position).
Our interactive comparison tool helps you find out which models are safe. Our Recommended list will help you see quickly which models come out on top.