We don't do routine here... If he rubs his eyes we go to bed with boob, if he doesn't go to sleep after a while we get up for a bit... next time he rubs his eyes we go back to bed with boob... He used to sleep without me but now he only stays asleep if boob stays with him so daytime sleeps can be as long as four hours if I have the time to lie with him, or as short as an hour if we have to go somewhere. If we need to leave in less than an hour I don't put him down but I leave early so he'll sleep in the car on the way.
At night he gets boob to sleep and then he sleeps for 12 hours whether I'm next to him or not. (He occasionally startles awake but boob for 5 mins sends him off again.)
So no routine can work if you have the time and freedom.