Yeah, I had those problems with Annika as well. What we did is rocked the cot, until she went to sleep. If she got really fired up, we would try singing to her, and if it kept up, we would pick her up, settle her down, and put her back in the cot still awake. It didn't take all that long for her to learn. Not sure if it will work with every baby though. A few months ago, we stopped rocking it, and then started patting the end of the mattress. After a few nights of that, we were able to put her down in her cot, and walk out, and she would go off to sleep.