Instruct: Classify a given review into positive or negative sentiment.
Query: Does what it says it will

We have a former stray cat that we've adopted and lives outside in our backyard (never comes inside...yet.) We bought this to put in her bed so that she'd stay warm on cold winter nights -- especially recently where the temps dropped into the 20s. She loves it. We wrapped it in a small fleece blanket since it's hard as a board. It has stayed warm throughout the night and into the morning. I think her body heat helps it retain heat -- there have been times it's still warm in the morning, 12 hours later. Exactly what we wanted and has made the cat very happy.