I find that I flying more and more Redeyes, and though I don't mind them if that is all I am doing, the article is absolutly right on about screwing up a sleep schedule. It is especially tough, if like me you come home to a wife and 4 kids who are not up all night. There is nothing more painful then flying a redeye getting in a 6am then catching your commute home, finally getting in the door at 1pm, and then not be able to sleep because of the normal activies of your familly.
I am also seeing that we are starting to see more and more mixed flying, evening 24hr, redeye, 24hrs, morning, etc...talk about rough.