Cobi will be 11 months in a few days and still doesn't get the whole sippy cup thing. He can suck on it, but he doesn't tip it back, and he won't even try. I've laid him on the boppy to see if that helps, but he doesn't want to lay down and drink. So during our meals we always have to hold the sippy ourselves... is he late on developing this skill? How old was your LO?