Privacy Pop Bed

If you have kids packed into one or two rooms, this is an option that will give them the feeling of having their own space. The Privacy Pop is a pop-up tent designed to fit the confines of various standard size beds, on top of the mattress, It's also good for travel if you're staying in cramped places such as youth hostels. A little pricey (they start at $179 for a bunk size twin), but if you want to be alone in a crowd, this might just do the trick.