The age of your mattress plays a big role with regards to choosing a new one. As a general rule of thumb, if your mattress is over 8 years old it’s probably not a bad idea to consider getting a new one. However, this rule does not apply to all mattresses direct. There are definitely some that are able to extend beyond 8 years and still provide the same quality performance. The best way to make a judgement call falls back on your sleeping patterns.