Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not good at holding air

We bought this mattress to take with us to Oklahoma to stay at my hubby's parents house (we just got home a few days ago). The first night was fine but by the second night the air began to leak out. I would wake up in the middle of the night feeling like I was in a hole because of how much air leaked out. We started deflating it every morning because of space issues and even re-inflating it every night didn't help the situation because we still lost air halfway through the night. Not sure if mine is defective or if all of them do this but I didn't like it!!