A great question from the OP, I hadn't even thought of it yet.ImarriedGrumpy said:My friends recently got back from a trip with their 19 month old daughter, and here's their trick: They brought a tension-mount curtain rod with them and put it up between their room and the bathroom/hallway/closet area. They then draped a blanket over the rod and made a separate "room" where they put the pack-n-play with DD in it. They turned off the lights in that area and only had one light on in the main area, and then they just read quietly until DD fell asleep. They've used this trick on many trips with hotel stays and say it works well as long as the "hallway" space is narrow enough to hold the tension rod.
KimR said:We quickly learned to let sleeping kids lie.When they'd fall asleep, either DH or I would find a shady spot and rest while the other took the older kids on rides. It worked wonderfully for us - we've never had any meltdowns and we didn't have to hassle with trying to get back to the resort on time or trying to keep a tired cranky kid awake until we could make it back for the nap. You may have a totally different experience, but this worked for us.