A fascinating range of materials is used in mattress construction. Mattress manufacture is a complex business; a lot of thought, research and testing goes into determining which fillings produce the best results, how many coils produce the right level of firmness and what type of finishing helps to prolong the life of the mattress. Manufacturers have to be aware of the many different types of materials are available and consider developing new materials themselves to produce the results they are looking for. Mattress wire Wire is used by mattress manufacturers to create coils or springs. Depending on the type of mattress, the wire is used in different ways. For example, an open coil mattress is made up of several hundred individual springs, held together with additional wire, whilst a continuous spring mattress takes a single length of wire and "knits" it together to form the sprung construction. Manufacturers use different thicknesses of wire in order to vary the tension of the springs - in general, the thicker the wire, the firmer the mattress. Coir fibre This is a popular filling material, usually packed around the springs to keep them in place. Coir fibre is 100% natural and is made from coconut husks. It is used for many other purposes, but is a mainstay filling for the mattress industry. Wool Wool is used for its luxury feel, but it also has natural properties which make it an excellent mattress filling. Naturally breathable, it is also resilient and has fire retardant properties, making it an ideal choice. Cotton, silk and cashmere At the luxury end of the market, mattress manufacturers use the same materials that we associate with luxury clothing. These materials are soft, fine and natural, making for the perfect finish to a top-of-the-range product. Foam Foam is used as a filling in some mattresses and as the core of the mattress in others. There are various types of foam in use and manufacturers use memory foam on its own to create a moulded, supportive mattress, whilst using other foams in conjunction with springs to provide the ultimate in mattress comfort. Ticking The cover of your mattress is one of the most important parts. It's built to hold the mattress together and to protect it from general wear and tear. For this reason, the ticking is often made from cotton or viscose yarns that are tough and the material is often treated against stains and allergens. Mattress Next Day is probably the largest mattress superstore on the internet. Selling a wide range of mattresses from leading manufacturers, we can offer quality mattresses at fantastic prices. Our next day delivery service is free or, if you prefer, you can select your own delivery date. We can even guarantee delivery before 9.30am on request. Take a look at our range of mattresses now at www.mattressnextday.co.uk, or call us on 0844 3911 222 for more information.