Before making any major decisions on how you spend, save, or invest your money, it is a good idea to work out its current value, future value, and the potential compounded interest you could earn. This means that the money you are keeping under your mattress for a rainy day will be worth less when inflation increases the prices of goods and services.
You are better off putting your money into a savings or investment account where it can earn interest and grow. If your money is not invested, it is only valuable to you now, and does not have the opportunity to build future wealth for you and your family. Inflation, among other factors, has an impact on how much your money could grow in a year or two