Designed for ultimate practicality, this Jay-Be Simply Kids mattress is completely waterproof and utilizes the latest technically enhanced breathable waterproof fabric technology, offering anti-bacterial, anti-microbial, and anti-fungal protection. It is also easy to wipe clean! Constructed with a medium firmness spring core this mattress is topped with a High-Density Eco-insulator to prevent a spring feel, and breathable e-fiber comfort layers for durability and comfort, offering substantial support for growing bones and muscles. Unlike foam, the unique structure of e-Fibre enables the free flow of air through the mattress, actively reducing moisture build-up and helping to regulate body temperature. Jay-Be e-Fibre is also free from harmful VOC emissions. The e-Fibre comfort layers used in these children’s mattresses are made from 100% recyclable plastic bottles, diverting over 70 million from going into landfills or our oceans and by choosing this mattress you are helping to prevent even more! Vacuum packed and rolled to maintain freshness and reduce carbon emissions during transportation. All Jay-Be Simply Kids mattresses are backed by a five-year manufacturer’s guarantee.