We have some upcoming trips, which will be the first since completely switching my son out of his crib and pack n play. I'm looking at the Aerobed Kids, which is an inflatable mattress with sides, but I'm just wondering what everyone does when traveling for older toddlers or kids who aren't quite ready for a bed without rails? Our son is not a good co-sleeper, at all, so I really don't like that as an option. Does anyone have another solution? Just making sure I'm not missing something awesome out there.