The core of the mattress is made out of coconut fibre. Coconut fibre provides very good support and it also creates a microclimate in the mattress, which makes it very hard for bacteria and fungi to survive.
The top layer is made out of pure wool. Wool regulates heat. Together with the cover which is made out of natural fibers, this ensures that children can better release their body heat. This gives the mattress optimum ventilation and heat-regulating properties.