Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not for chemically sensitive people

We bought one of these for our bed quite a while ago and it was wonderful to sleep on, very comfortable with my sore hip. I didn't connect the fact that I started to feel sick a lot with the foam topper until I read some articles about the toxic fumes they give off. I am chemically sensitive , so after reading that I took it off the bed to see if it made a difference in how I was feeling. My hip was not as comfortable, but after 3 or 4 days I did start to feel better and after a few weeks there was a very noticeable difference in how I felt. I was actually starting to feel well again. If you are at all chemically sensitive I definitely would advise against memory foam, unless you get a non toxic memory foam or latex product.