Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Worked great twice

We used this air mattress twice and it worked great. It was very comfortable and a nice height off the ground. Since we only use it when company comes, it was at least 3-4 months before we used it again. The third time it wouldn't hold air. There are no holes in it anywhere and I cannot figure out where the air is leaking from. Of course now it's too late to return it. Wouldn't recommend.