From USA TODAY:

London Mini-hotel rooms on tap

Soon you'll be able to rent a chic, mini-hotel room at Gatwick and Heathrow airports. The new concept, called Yotel, is a mix between the tiny cubicles popular in high-rent Japanese cities and British Airways' stylish first-class cabin. (Customers are called "passengers.")

The ultra-modern, windowless Yotel rooms cost about $50 for a four-hour block, with hourly extensions available. Overnight stays start at about $110. Price includes free Internet access, workstation, on-demand movies and mood lighting. The first Yotel at Gatwick opens in May; the second opens at Heathrow in July.

In the future, you could see Yotels pop up in other airports and central-city locations.