6mo puppy keeps wetting his bed?

My puppy keeps wetting his bed. He is housetrained other than going when he is feeling an extreme emotion (excited, fearful) or we put off taking him out when he really has to go. The latter rarely happens because we make it a priority to take him out. We have washed his bed so many times with a deodorizer that... show more My puppy keeps wetting his bed. He is housetrained other than going when he is feeling an extreme emotion (excited, fearful) or we put off taking him out when he really has to go. The latter rarely happens because we make it a priority to take him out. We have washed his bed so many times with a deodorizer that discourages resoiling but he keeps doing it and we re really confused? He is healthy except for being on a limited-ingredient diet, which isn t really an illness. We plan on ordering him a new bed tonight to see if that changes anything. Any ideas as to why he keeps resoiling?
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