Hi T., Children sometimes go through different sleep patterns, so you have to be very careful not to develope bad habits with her, by going in and picking her up and or taking her to your bed, those are very bad habits. If you stop going in and picking her up, she will eventually stop the crying, she may still wake up, but once she learns that her crying is not going to bring someone to the room she'll stop. You are allowing her crying and her not sleeping to control your sleep, you need to nip this in the bud, she's not an infant, so you don't want to teat her like one. You said hopefully it's just a phase, but she are contributing to this phase by going in and picking her up. I've been a mom for 26 years, I rocked my baby's/toddlers to sleep, laid them down, checked on them at night every time I got up to go to the bathroom. All 3 of my kids slept through he night from 6 weeks on, unless they were sick. I read the other responses about learning a knew motor skill so that's why she is waking up, all I can say is nice try moms. J.