The Jay-Be Simply Kids Waterproof mattress features advanced waterproof fabric technology that surpasses traditional solutions by providing built-in resistance to bacteria and microorganisms, helping to maintain a cleaner, fresher sleep surface. At its core is a medium firmness spring system that provides balanced support, topped with a High-Density (HD) insulator layer and a deep cushion of breathable Rebound e-Fibre™ for extra comfort. The mattress border includes a 3D mesh vent, which works in harmony with the open-cell structure of the hypoallergenic comfort layers to improve airflow and encourage moisture evaporation, further helping to maintain freshness and reduce exposure to potential allergens. Key features: Waterproof fabric with anti-bacterial, anti-microbial and anti-fungal protection Medium firmness spring core provides evenly distributed support 3D Mesh border vent for increased airflow 100% foam-free with breathable e-Fibre™ comfort layers OEKO-TEX® certified fabric, free from harmful chemicals Open-cell fibres to help wick away moisture Vacuum packed for freshness and reduced delivery size