I haven’t ever needed to with him - however my eldest I needed to until Christmas time when he got a toniebox to listen to when he falls asleep. So we stopped just as he’d turned 4! X
We used the chair method but ended up staying in his room for like a year after we started it - one day he just took ages to fall asleep (a phase) so I got bored and tried to leave and he was fine ! We’ve never gone back ! And his back to falling asleep in 5 mins . Also means if he ever wakes in the night we go in for a quick cuddle or go out his covers back on and we go back to bed within 5 mins . Preciously we’d have to sit in his room for 3 hours or so . Not sure why but he just needed that last step of us leaving his room - he was always been a good sleeper but it is much better now he lets us leave xxx
I do but would like to stop it.