While considering foam mattresses, people come across a lot of different types of materials that are used to manufacture the mattress. Metals such as cotton, springs, foam, etc. are quite prevalent in their usage and make for decent mattresses all over the world. The foam mattresses, however, are considered to have a very long life span. Tenure of 7-10 years is what is expected out of a foam mattress. However, proper care needs to be taken to squeeze out such an extended period.