Lately my 6 month old daughter will not sleep through the night at all! When she was born she slept through the night since 2 weeks. We have been to her doctor about this many times but she continues to wake up every night acting like she wants to play. She is getting plenty of food (she's on formula, cereal, all kinds of baby food, gerber graduates puffs, and cheerios). We just switched her formula to Similac Sensitive for fussines and gas because we thought she may have bad gas pains and that's causing her to wake up. My boyfriend, Lily and her 2 year old sister are currently all in the basement together while we save up enough to get a house. So everytime Lily cries at night I run to her to soothe her so her sister doesn't wake up. She was used to a bottle at night but we slowly got her off of that with help from her dr. But she's still waking up! We try letting her scream on nights her sister is not there but it seems like that doesn't work at all. She screams from 2:30 a.m. to 5:30 a.m. then falls asleep but it up by 6:00 a.m. Last night when I ran to her nothing soothed her, not her ninny not a bottle as last resort and she ended up waking up her sister and no one got any sleep! Please help! I have no idea what to do. It's a complicated situation and I need help!