For more than a decade Nav Canada has researched and implemented strategies to mitigate the effects of fatigue and that includes sanctioning a nap if needed.
"We actually have a lounge where Nav Canada provides us with reclining chairs so we'll use them for naps and if you go over there in the morning you'll often see a controller who's had a long commute and they'll slide away on their breaks and take a 10 or 15 minute nap to re-energize," explains Arnold.
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Canadian controllers are trained and managed by one of the most successful and safe air traffic control systems in the world. Last year they won the IATA Eagle Award winner means they were judged the world's best Air Navigation Service Provider
http://www.cnn.com/2011/TRAVEL/04/28/canada.air.safety/index.html_________________
Canada! Its like America, run by adults!