S.C.
Hi C.,
In my experience as a big traveler. We go visit family in San Diego aver 3 months. And every time we come back we have behavior issues or more like adjustments. We have a pretty regular schedule at home.
When she was a baby she would always sleep less and wake up more often when we get home.
I have never found anythgin to fix this other then 3 to 5 days being home again. I wish I had a suggestion.. I just thinks babys and kids seem to react this way when they have a break in the normal routine..
Good Luck!