I'm not sure it's as cut and dry as no sleeps ever. DD hasn't had a day sleep routine for four months, but she still sleeps in the pram or car if tired but not everyday.

I find the days she sleeps in the day are longer because then she's up till late and takes ages to fall asleep.

I would think it's a long transition process and they stop sleeping in the day when they stop falling asleep at random in the car or pram etc which will probably be a long time for us yet.

Was that a help? Geez nappy brain today!