DD is 15 months old, largely a reasonable sleeper.
We have a standard nighttime routine, then put her to bed 19:00/19:30, day ‘goodnight’ and sit with her until she falls asleep (we do similar for her nap).
Sometimes she falls asleep almost immediately, other time sit can take upwards of an hour, we have a white noise machine to block out surrounding noises (we live in the city).
How do we get to the next stage, where we just say ‘goodnight’ and she falls asleep on her own? If I tried that now she’d just cry (call me feeble, but we’ve never left her to cry, if she is upset day or night we come running).
Any advice welcomed!