My husband is the same way. I bought him a sound machine. It's small and easily fits in a suitcase. He ended up liking it so much he now uses it all the time. I don't know how many fans we bought and left over the years. This might be an option for him when he travels if he needs the noise.
We would love to have it during our stay at Pop. We will be arriving on November 8th If you would put our names on it when you are finished using it, that would be wonderful. I will send you a pm with my information. Thank you!