Our 10 month old finally learned to get into sitting position from her tummy. She's been learning for a week, but really mastered it today. This post may be premature, but she had an awful time getting to sleep tonight - an hour later than normal (1.5 hours of me trying to get her to sleep). I twice left the room for 5 minutes, to see if she would get to sleep - and her cries were more whines than actual cries - but when they got to the "I NEED MAMA NOW" stage, I went in and she was sitting up both times. And, she kept trying to sit up when I layed her back down. I think I know the answer. Be consistant, and keep laying her back down, right? Just checking.....