“I’ll listen until you can fall asleep”
Take a look at this absolutely excellent advice on helping your little one develop sleep confidence. I’ve have tried some of this with little ones. I highly recommend the quote above when settling young children above. Often just saying this and then sitting silently by their bed for 10 minutes is enough to help them settle and by giving up that extra 10 minutes you gain all the time you may have spent trying to put them back to bed when they get up or leave the room.