Former "American Idol" judge Paula Abdul told Fox News that while they were living together, her former co-star Kara DioGuardi suffered from sleep eating and sleepwalking.Sleepwalking is typically seen as a childhood problem. While it is more common in children (as many as 17 percent of children sleepwalk), up to four percent of adults sleepwalk as well.Sleepwalking, also known as somnambulism,