Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Topper Lasts 6 months Tops

I purchased this topper June 2006, and at first loved it.This was a great purchase until it started to shrink, deflate, and discolor. What a waste! The pad used to be 3 inches think, but it has shrunk significantly in all directions and thickness. It has lost its cushiony quality, and is now uncomfortable. There also appears to be no way to get in touch with the company to inquire about what has gone wrong here.