I purchased this mattress topper when some back problems (sacrum) ached so badly that I couldn't get out of bed. My legs and hips ached so badly that I wanted to cry. My neck, which has some bulging discs and a pinched nerve, ached as well, and my hands were both so swollen I could not make a fist. Though I was totally confused over which to buy, this one had nice reviews, was a fairly good price, and I knew that Overstock would stand by their merchandise. I was happy on morning one. I was able to get out of bed alone and was ecstatic! The 2nd morning, same thing. I don't think I would hold this is a class for those who have stomach issues; it has served me well over the past weeks, and I feel confindent that I will continue to feel relief from it.