Zoe sleeping Mama bed

Zoe is a good sleeper - she goes to bed between 8 and 8.30 and wakes up around 7.30 the next morning. Unfortunately she wakes up in a different bed than the one she goes to sleep in. While we have no trouble putting her down in her cot, at some time during the night she will insist on migrating into our bed. It all started in June or July, when one winter night she had a cold, couldn't sleep and started crying. So we brought her over to our bed and comforted her till she fell asleep again. The next night there was a frightening thunderstorm and we repeated the procedure. It only took one or two more opportunities for her to pick up the habit. Now, it seems as if she's subconsciously waiting for us to go to bed so she can wake up and demand to be taken over where she will happily continue her dreams. If we don't oblige, however, she will scream down the house. It can be nice having her in our bed, a very family feeling. But frequently she tends to take advantage of the space, tossing around, even kicking in her sleep, and ultimately driving me away. So now we're kind of waiting for her to accept her own cot and not wake up around midnight. But it doesn't look as if that will happen soon. As she said the other day after a transfer: "Zoe happy. Zoe sleeping Mama bed."