Helped me to understand
We had progress almost straight away. HUGE progress considering that she was sleeping on me most of the night, wanting to feed to sleep almost every hour. We ditched the dummy, we use white noise all night long and we don't have the 40 minutes wake every single night. This last one took a bit of time, but here we are!
We followed the routine exactly as instructed to start with, and this really helped us to understand our little one. Then once things got better, we slowly adapted to what our baby girls want and with the daily activities. We keep hearing that all babies are different, so I believe that the sleeping patterns will also be a bit different from one baby to another. Also, some day we are more tired or more energetic than some other, our little ones too!
We don't wake her up anymore, she wakes up around 7.30 / 8am, naps around 9.30 for 40min, then at 12.30 / 1pm for 40min to 2hours depending on how busy the morning was, then again between 20 and 40min around 4.30. Then bed at 7pm. At the moment she usually wakes up twice a night for a quick feed and back to sleep straight away.
No crying anymore, much better sleep quality for everyone. Awesome!