Sleeper: a movie, book, play, etc. that achieves sudden unexpected success after initially attracting little attention—typically one that proves popular without much promotion or expenditure.
The definition of a sleeper correlates perfectly with the NFL-version of the word.
Players like Victor Cruz, Arian Foster and James Harrison come to mind as stars who have enjoyed tremendous success after initially receiving little media attention.
The Jets had a sleeper of their own in 2011 in Aaron Maybin. Maybin was considered a bust entering last season, but he managed to lead the team in sacks and to establish himself as a solid pass-rusher.
So who can be the Jets 2012 version of Aaron Maybin?