@opsthryl Thanks for posting this. With sleep training, you are asking baby to learn how to fall asleep on the own. You need to give them every tool to do this - perfect environment, sufficient opportunity to feed during day, enough daytime sleep to not be completely overtired and pumped full of cortisol at night.
When you give them every tool, even if they donāt need to use it, if they DO need it they have it. Then you are just asking them to put the pieces together.
I would agree that it takes away some flexibility but, to me, sticking to a nap schedule is a small price to pay to in turn have a child who sleeps well, predictably, and is in a good mood. I think everyone needs to decide if giving up some flexibility is worth it, but you canāt expect baby to sleep well without a nap schedule. Some babies will but a lot wonāt.