Sure, tweens and teens spend hours a day as relative screen zombies, eyes fixed and faces aglow in the radiant light of their pocket screens. On average, parents are spending what amounts to more than a full workday connected to screen-based media, according to a new survey from Common Sense Media. Just like their kids, parents are spending upward of nine hours or more engaging with media. "If you think about it, that's more time than you spend sleeping … or anything you do," said James P. Steyer, founder and CEO of Common Sense Media, a nonprofit organization that helps families navigate media and technology. They asked a sample of about 1,800 parents of tweens (ages 8-12) and teens (13-18) from across the country this summer about how they spent their time using media, whether it was using computers or hand-held digital devices, watching television or reading.