M.J.
Try to get a cabin or independent building of some sort when you travel. When our youngest was about 9 months, we took a couples vacation to Maui. The only thing I wanted from that trip was sleep. First night there, we ended up roomed next door to a couple with a newborn. Needless to say, that was a horrendous night of sleep for us, with the baby waking every 2 hours. We were going to ask to be moved but thankfully those people left the next day.
Walls in hotels can be thin, so do think about ways your vacation won't infringe on those of others.