Puppies don't normally 'wet the bed' - But he's young, he's in a new environment, he's away from his canine family. He could be making his bed smell familiar or he might not fully realise that it is his bed. Give him time.
Take a sample to the vet and check there isn't an infection but relax and make him feel at home.
He'll soon settle.
I think it could've been the texture of the bed. Also, it's been raining and snowing in Utah the past week. He hates it. I bought puppy pads today tho. It was a nice day today so we spent a lot of time outside. No accidents today, he's been a good boy. Thoughts?