I have a daughter who did the same thing and even though she is 29 now, I won't ever forget that time of her life. It turned out that my daughter has ADHD. The nervousness and anxiety kept her from sleeping. The old remedy to help our babies sleep was a mixture of Benadryl and Tylenol. This did help tremendously. Knowing more about medicines today, I would only try the Benadryl. Benadryl is not addicting and doesn't stay in your system so it is safe. Too much tylenol can give your liver problems. The other thing we had to let her do was cry. She does what she does because she knows you will come to her each and every time. My pediatrician told me to leave a crack in her door where I could see her but she couldn't see me. I could check on her while she screamed and cried but as long as nothing was wrong, I didn't let her see me. It didn't take long for her to quit. You are rewarding her for waking up and calling for you. As she got older I had trouble with her and her brothers going to bed at night. I used a token economy behavior program to get them to comply with bedtime rules. I would tell them at 8:25 that they had 5 minutes until it was time to be in their rooms and I would set a timer. When the timer went off, they each received one token for being in their room (they had to have gone to the bathroom and gotten a drink of water prior to this time). They could have the lights on for 30 more minutes so I would set the timer again. When the timer would ring, if they were in bed with the lights out, they received another token. If they got out of bed or called for me after this point, they lost a token. The tokens, we had decided in advance, were equal to one ticket at the Kart Ranch where they could ride go-karts. This was something they loved so they were eager to get the tokens. The date to go to the Kart Ranch was set in advance as well-like three weeks later. After this three week period, all I had to do was set the timers. It worked like a dream. Afterward, the internal reward of feeling better in the morning was all that was needed and I no longer had to use the tokens. Maybe you could reward your child by setting a clock for a specific time that you would come to check on her. If she doesn't call for you before that time, she earns a reward (keep it simple and manageable but visual in some way). Then start extending the times before you check on her. Work in increments until you get through the whole night. You may even get a cute alarm clock she likes and set it with her each night at bedtime, then put it by your bed, not hers, so she knows you will check on her at the time decided. This puts you in control instead of her. Your consistency is extremely important. Sometimes it is more that we need to train ourselves and not the children. Best of luck. Let me know if you try and how it goes.