Picking fantasy football sleepers, or players taken later in the draft that have the potential to be much more valuable than generally thought, is always a tricky thing to do.
If you were sure they would be sleepers they would get taken higher thus defeating the point of a sleeper.
That being said, every year there are guys going in the late rounds that get overhyped as being the next coming of Arian Foster or Jimmy Graham.
Those guys tend to start creeping up draft boards until they're no longer as much of a sleeper as initially thought, and wasting a higher pick on a guy you thought would break out increases the cost if he should fail
This year's overhyping has already been in full swing, pushing quarterback Robert Griffin III, receiver Titus Young, running back Rashad Jennings and others higher and higher up the draft board.
Those guys could still be sleepers, but their value as a sleeper has gone down due to their hype.
These next five guys, on the other hand, haven't generated quite as much interest yet. They all offer at least some upside from where they're being taken in drafts and could end up being top ten in their respective positions.