DD1 was the same. what we did for ages was just take the cot matress out of the cot and put it on the floor in our room (child proof the room of course) and she just slept on it. when she woke up she would just toddle out to the loungeroom.

after a while, i got a junior bed and then eventually popped her in a single bed with guard rail. she was in a single bed by the time she was 18months to 2 years!