Difficult to move around in and get out of.

I was talked into this mattress by a company representative before I bought it at Cardi's in Warwick. I have Fibromyalgia and was told that my body would be comfortable in the spots that hurt me. Over the years, I have gotten progressively worse sleeping on it. One thing that is awful is that the sides are not firm so it is difficult for me to get out of the bed. I hate that part of it the most. I seem to sink in too much and think I should have chosen a firmer mattress. I wanted so much to like this mattress but for the past 5 years, I have been having to go to physical therapy to treat my lower back. I feel this mattress has unfortunately exacerbated my lower back problems and my Fibromyalgia. I like the natural makeup of the mattress but feel that I was misled by the company representative and then the mattress salesperson at the store. If I had the money (I live on a fixed income). I would buy a Nature's Rest mattress but a more firm one.