We have all had to do it at one time or another, and some do it out of choice. Sleepinginairports.net is an essential travel companion when you are trying to save a few dollars on your way round the world. Its as off the grid as you can get.
Sleeping in airports is often the only answer and sometimes the cheapest answer when you have an early morning flight. After all, airports are safer and more comfortable than some hotels. This site is a useful guide to the sleeping facilities in most of the world’s major airports and many of its minor ones.