I have an expensive mattress that I bought a few years ago and it was really soft. I use to sleep like a baby on it, but I haven't had a good night of sleep in probably 4 or 5 months. I get back and side pain now, especially when I try to sleep in. I'm really tired of dealing with it and I've never had this issue in my life. Would it be better for my back to get a more firm mattress? I've tried those postrapedic beds like on tv before when I stayed in a hotel up in Kentucky, but it was so hard I didn't like it. I'm not really sure what to do. I don't want to waste money on a new mattress and then I end up with back pain still.