Definition: A greatly undervalued antique or collectible found offered for sale in a venue where knowledgable antiques dealers do business such as antique malls, collectibles shows, flea markets, estate sales and collector swap meets.
Sleepers can also found online through antiques Web sites and online auctions.
Also Known As: a bargain
Examples:
Brenda maintained that there was a sleeper waiting to be found in every antique mall she visited.
