In these suites with bunkbeds, which room is closest to the door leading out of the suite? Are the kids in the room which exits the hotel suite? My ds is 4 and has a mind of his own. I can totally see him getting up and deciding he wants to leave the suite and do whatever (go get breakfast, go find Goofy, go swimming, find his baby brother a toy, etc). If we are not between the door and my son, that could be a huge problem.
In fact, he's bigger now, and more adventurous. Our previous visits he was much smaller, and we still couldn't go to sleep without shoving a chair in front of the door. Now he's big enough, though, that I think he could quietly push the chair away and sneak out, anyway.