My LO was in his own room from 10 weeks, this was purley due to the fact he was a big baby, and outgrew his moses basket at this age. We have a small bedroom and noway a cot could fit in it. It was a squeeze with the moses basket! But we have the monitor on when he goes up to bed, downstairs, then when we go to bed we take up the monitor in our room so even tho were next door can still hear him clearly. Have had no problems with this. I also worried that if I left it until 6 months, the transition would be much more difficult. Just to add he is also a noisy sleeper not from his vocal chords but for his legs, he bashes them on the matress really loudly in his sleep lol.