Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Too Little Heat

Bought the heated bed for my 17 year old cat who loves sleeping in warm places. This unit doesn't put out enough heat to interest her, it barely felt warm to my hand. She will only use it when I put an electic heating pad, set on low, in the sleeper under a towel. I could have done the same with a cheaper non heated unit.