From about 2 weeks during the day in cot to get them used to the room.
We co-sleep on a night until either we get sick or no one is getting sleep, then they move into own room.
Previously with Dd1 for instance it was 6 weeks, she couldn't settle in our room in crib ( we didn't do AP then), she slept through from 8 weeks.
Ds1 refused to sleep with us and was better from week 2 in the nursery, he slept through from 9 weeks.
Ds2 was first full co-sleeper and didn't even manage one night of unbroken sleep until 13 mo We didn't know what had hit us.
This did coincide with weaning off the breast though, so I would imagine that had something to do with it.
God only knows what this one will be like
Tink, there's plenty of time yet , wait until she's at least gone through teething before mentioning how easy it is, we don't want you tempting fate