Where does hour LO sleep

We haven't had him in his room all night yet because it is on a different floor. Our room is upstairs and his is downstairs. So I want to try it out but I'm soo scared! Anyways I was going to wait till 6 months BUT he is keeping us up and if we make noise in the bed he wakes up blah blah 🙄. So what are you all doing with your babies?