We did the same thing as pixie- on DS's first birthday we took the matress out of the cot and put it on the floor. He was flately refusing to sleep in the cot and owuld screma when i went to put him in there!! And now he is happy as larry and he is so cute when he wakes up from his nap and comes happily out of his room instead of crying in a cot!! He is sleeping much better too!!! And its easier to go in and comfort him if he does happen to wake too early and be a bit unsettled- i can just go and sit or lay with him and its all good!!