An old mattress contains some recyclable materials such as fibres and metal springs. Some companies strip out and recycle these materials. The easiest way to recycle your old mattress is to arrange for your suppliers to remove your old one when they deliver your new one, they will then ensure your mattress is recycled safely.
Mattress recycling can be done by calling a local waste company to collect your old one but this is usually a chargeable service. Some local councils offer bulk waste collection for this kind of waste.
You can also take your old mattress along to the household recycling centre in your area where you will find either a skip to recycle your type of mattress or a general waste skip to dispose of it correctly.