You probably wouldn't want to spend a week in one, but if you feel like crashing out between international flights, try one of these new pod hotels from the creators of London's YO! Sushi restaurants. Inspired by British Airways' first class cabins and Japanese capsule hotels, YOtel will be opening at Gatwick and Heathrow airports in the spring.
These funky little dorm rooms are only 10.5 square meters but are fully kitted out with ports for iPods or MP3 players, workstations, free Internet access, and on-demand movies. They will be available for booking in four-hour blocks at around £25/$50.