Claire did the same thing. As soon as she was able to roll, she was all over the cot. To be honest, I wasnt really fussed. Sometimes she would get cranky because she'd get her leg in between the bars on the cot and wouldnt know how to get out, so I'd have to go in and help her, but it only took a few weeks of her doing that before she got the picture and stopped doing it. She still moves around, but I figure she is safe in the cot and I feel theres no need for me to restrict her from moving around in there. I move around when I am asleep as well, and she's just doing the same thing.