Mattress Discounters ebook for Windows. Excerpt: If the springs are popping out of your mattress or when you lay down you can feel something uncomfortable in your back, this might be a sure sign that it is time to get a new mattress. There are other indicators too that are a good clue it is time to buy a mattress and one is if you are sleeping on a hand me down or the mattress that you had when you were a kid. Mattresses really do affect your back and your posture as well as how good of a night's sleep that you get. You can flip it and turn it but there comes a time when you have to bust out the checkbook and buy a mattress. Mattress discounters are a great place to start when you are shopping on a budget.