Charlotte went into her own room and a cot at 3 months because she slept through the night and out grew the moses basket.
George was about 3/4 months because he hated the moses basket but because there was no room in our room to put a cot, I had to fetch him from his room, into ours to feed him, which was hard work. He ended up fast asleep next to me in bed half the time, oops!
Charlotte had a junior bed shortly after we moved when she was about 19 months and George went to a junior bed because he used to try tip his cot, then back into a travel cot (so if he did tip it, no major injuries) as he kept getting out of bed and running riot, when he was about 2. He was about 2 1/2 when we got him back into the junior bed.
They used to have 'sleep overs' in each others room
LOL! but they do have seperate bedrooms