Other Sleeping Options if you are taking a train long distances across a country or two, take a night train and sleep on the train. You won't waste any day time traveling. Read the rules for 'training' at night. This is where it comes in handy to have a sleeping bag if the weather is cooler. For more information, visit The Budget Traveler's Guide to Sleeping in Airports .
Many institutions open their residences up to travelers in the summer months.
If you get their phone number and address, you can stay with them when you are in their neighborhood. Hopefully you can do the same for them if they come to your country. This site gives you great advice on sleeping in airports and saving money. Includes maps and addresses too.