To us, hotel rooms are mere crash pads in between the beach, museums or Cinderella's Palace. But young travelers are more sensitive. "Strange new places can be intimidating," says Shelly Rivoli, author of the award-winning guidebook Travels With Baby (2007). "Kids need to be comfortable with their new surroundings so that come bedtime, they'll be able to relax and sleep." Here's how to cozy up the temporary digs so everyone can get a good night's rest.