Unless you're in business class, it's pretty hard to sleep on the plane (unless you have some good drugs...and then you feel dopey when you wake). I'll just find an airport lounge, have a bite, shower, and a nice snooze (and all the booze you want if you have the need for "artificial joy"). I think I paid about $80 CDN for 6 hours, but it's free if you have an American Express credit card. If I want to see a city, I'll book a layover and not have any stress, but that's only if I'm not traveling with rifles.