How much does vacation mess up sleep?

My 12 mo has never been a great sleeper. We have a schedule at home, I don’t follow it to the MINUTE, but it’s pretty consistent. His sleep has been getting a bit better the past week. We are going out of town for four days to visit family next week.

I know his sleep is obviously going to get messed up there, and he’ll probably wake up through the night because of how different everything is. We are seeing my husband’s big family and there will be activities and different things going on.

My question is, if I stray from his sleep schedule how much will it mess up his sleep at home from your experience? I don’t us to have to miss out on things because he needs to take his nap at a specific time, or he needs to go to bed early. But, I also don’t want it to take weeks to get back on track at home. HELP!!!