It's probably the most overused term in fantasy sports, but sleepers are what many players seek in their drafts. But do you know what the term is supposed to mean?

Sleepers are those guys who outperform their supposed value on draft day, based on where you take him or what you pay for him. Sure, it's mostly guys who surprise or "come out of nowhere" to put up big stats, but the term is best used in relative terms based on where the guys were drafted.

For instance, Brandon Stokley could have been considered a sleeper since he likely was taken in the end rounds of drafts or as a free agent and ended up with a 1,000-yard season. On the other hand, his teammate Reggie Wayne did have a bust-out season as well, but it's hard to consider him a "sleeper" because he was still a mid-round pick who ended up in a similar spot at the end of the season.

With that said, here are a handful of players, sorted by position, that might be considered "sleepers." Some will be deeper than others, that's for sure, as we mix in some familiar names with some lesser-known gems.

Quarterback

Kurt Warner has just 10 TD passes over the past three seasons. Gene Lower/WireImage.com

Shallow sleeper: Kurt Warner, Cardinals: We know what he's capable of, thanks to his two MVP seasons, but we're not sure if he can do it again. But this time he has some weapons at his disposal with Anquan Boldin and Larry Fitzgerald. Maybe that will keep Warner's career going for another couple of years.

Medium sleeper: Kyle Boller, Ravens: Everybody is waiting for Boller to finally have that breakout year. He doesn't have many excuses since Baltimore picked up Derrick Mason and drafted Mark Clayton, plus it will have Todd Heap healthy. With that many weapons, he'd better do something. And unlike Joey Harrington in Detroit, there isn't anyone breathing down his neck for the starting job.

Deep sleeper: Kelly Holcomb, Bills: While Buffalo is putting its stock in J.P. Losman, it also has a nice insurance policy in Holcomb, who has a couple of 400-yard games in his career. Should Losman go down, Holcomb could step in and function nicely with veteran Eric Moulds and the rising Lee Evans.

Running Back

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I'm trying not to add the obvious "handcuffs" to star running backs. It'll help you immensely if you draft Larry Johnson with Priest Holmes, Najeh Davenport with Ahman Green, etc. Also, it's hard to call sleepers those who are leading running backs-by-committee or crowded races (i.e. Lee Suggs, Michael Bennett, Tatum Bell).

Shallow sleeper: Correll Buckhalter, Eagles: A knee injury kept Buckhalter off the field in 2004, but he's back to redeem himself and be at least a good No. 2 back in Philadelphia. He's more of an every-down, between-the-tackles back than Brian Westbrook, which could mean more touches, especially at the goal line if he stays healthy.

Medium sleeper: Mewelde Moore, Vikings: While Bennett is the early favorite to take back his starting job, he's a bit of an injury risk and might not be a great every-down back. Moore racked up 339 yards in three starts early last year before falling out of favor with Mike Tice. He may get his chance again as an every-down back if Bennett can't pull his weight. It's also worth looking at Moe Williams to steal some TDs and rookie Ciatrick Fason (who could rise to quick stardom like Moore last year).

Deep sleeper: Justin Fargas, Raiders: While Oakland now has LaMont Jordan as the featured back, it also has Fargas still hanging around as possibly a third-down back. Injuries have more than overwhelmed Fargas during his pro and college career, but there's a lot of potential if he could ever get the playing time. Should Jordan not live up to expectations, Fargas could get more looks.

Rookie sleeper: Eric Shelton, Panthers: He's a big bruising back who could be valuable at the goal line. And given the injury histories of both DeShaun Foster and Stephen Davis, Shelton could get a lot of looks like Nick Goings did last year.