Infant not sleeping

Hello! I’m on the tail end of a 2 week trip where I had to room share with my 7 month old, 4 year old and husband. The 7 month olds sleep progressively went from bad to worse in the 2 weeks. At home they have their own room and sleep through the night. Traveling they woke up 4 times a night and only went back to sleep when nursed. I’m very concerned because in a month we have another 2 week trip where we will be room sharing again and have 20+ hours of travel each way and a 6 hour time change. The trip is not flexible nor negotiable as we are traveling for a family members wedding. We have the slumber pod, sound machine, fan, etc. after two weeks of absolutely awful sleep I’m dreading this trip. I’m looking for any and all advice to try and make this trip not miserable.