I think the important thing to him, is that he is with YOU, no matter where you are. We just spent a week travelling around Michigan and Ohio visiting family, I packed alot of stuff from home, and I tried to keep her routine as structured as possible.
Make sure you have the favorite toys, blankets, beds, treats, bowls, etc. And I think if you give some extra love and attention he will settle in quickly. I still brushed her every day around the same time, and played the same games, spent time with training tricks, etc.
She even like the bed better at one hotel than she did OUR house!
Heck, so did I.....so I bought a new mattress! lol,
I betcha he will settle in within a few weeks.