First there are apps to calculate the right time to put a baby to nap or sleep. And visual cues, like yawning or rubbing the eyes... Then you must have a simil

First there are apps to calculate the right time to put a baby to nap or sleep. And visual cues, like yawning or rubbing the eyes... Then you must have a similar routine everyday Then he probably might want some milk before sleep, formula or booby Finally, from my own experience, but much like the comment. Darker room, hold him, walk around the room, pat his bottom, hum a song