Coiled filament mats (CFM) are manufactured within an extrusion process and special downstream peripherals. A large number of endless polymer strands are joined to form a spatial mat structure. The individual, randomly arranged melt strands are connected at the contact points, thus enables the structure to be held together. Possible fields of application can be found wherever foam mats are currently used. CFM products offer a number of advantages, such as good air circulation, suitability for allergy sufferers and good cleaning possibilities. In order to achieve defined and reproducible product characteristics as a foam mat substitute, it is necessary to determine the physical properties using a suitable test setup. In this publication a description of the laboratory plant design for the production of CFM is given. The effects of process variables like mass throughput, take-off velocity and distance between tool to water surface on the achievable compression hardness and bulk density of CFMs are described. Occurring mat defects are presented and the process limits are explained. The test method of the mats is introduced and the results of the investigations are presented. A life cycle analysis shows the decrease in strength over the service life of the product. The investigation of loop formation during strand deposition of the single strand allows conclusions about optimum process settings. Tensile strength tests allow an insight into the failure mechanisms of the mat structure under mechanical load.