I agree.....DD went in her own room very early on....6-8 weeks or something.....and my sleep was transformed. She was waking for a feed then during the night and I would just feed her in her room (I always had to get out of bed to feed anyway otherwise I would have dropped off). She is right next door to us, and even so, I used a monitor for a couple of weeks, but she made herself heard and I soon stopped that! Even if she wakes in the night, when I am asleep, I sleep so much better IYKWIM.
She is upstairs now having a nap but I have no monitor down here....you WILL hear her....you don't realise how tuned in you are.
It lovely to get your bedroom back to yourselves as well.....
As TA said, you have to do what is best for you, but it worked for us as well.....and a few others on here I think...I'm sure Daisy moved her DD quite early and I think Derlor did as well