Bests & Worsts Reviews from Amazon

I purchased this for my mom's hospital bed here at my home and although it's comfortable, she is complaining that where her backside lies (and she is only 110 pounds) is starting to have a rather large area that now sinks in. It has become uncomfortable. I rotated the mattress and the same thing happened on the other side. Not sure why this is happening...I could understand if she weighed 200+ pounds but she's really light in weight. In retrospect I would look elsewhere for a different mattress because she's not happy and I'm not happy. Just a warning, especially for heavier folks...I would definitely stay away from this one. It might be okay for a child, but not an adult, in my opinion anyway. Thanks for reading my review!