From 13 to 18 months.
It is good to have a sleep schedule, it also changes over the months, as the duration per sleep session, but also as hours. I, for example, have slept all night since I arrived with my mom, where my new home was going to be. Sleep program from 7 to 12 months. In the thirteenth month, the night's sleep started somewhere around 20:30 - 22:00 and I woke up around 07:30 - 09:30. During the day I had a sleep session, lasting between 1-2 hours. On the fourteenth month, the evening sleep started somewhere around 20:30 - 22:30 and I woke up around 07:30 - 08:30. During the day I had a sleep session, lasting between 1 - 3 hours. In the fifteenth month, the night's sleep started somewhere around 21:00 - 22:00 and I woke up around 08:00 - 09:00. During the day I had a sleep session, lasting between 1 - 3 hours. In the sixteenth month, the evening sleep started somewhere around 22:00 - 23:00 and I woke up around 08:30 - 09:30. During the day I had a sleep session, lasting between 1 - 3 hours. In the seventeenth month, the evening sleep started somewhere around 21:30 - 22:30 and I woke up around 07:30 - 09:00. During the day I had a sleep session, lasting between 1 hour and a half - 3 hours. In the eighteenth month, the night's sleep started somewhere around 22:30 and I woke up around 08:30. During the day I had a sleep session, lasting between 1 hour - 2 and a half hours.
Days full of happiness and smiles (^. ^)