It fascinates me that there is an expectation that we all fit into certain parameters. This includes babies, toddlers, children and adults. To me it kind if defies what makes humans so extraordinary - our differences.
I have been an insomniac since childhood. It wasn't easy for me or my parents but I am so grateful that my mum chose to deal with it lovingly. I was and am an anxious person and being left to deal with it by myself would not have ended well.
To that end DH and I have chosen to treat sleep lovingly. In all its forms. DS has always been a solid sleeper. DD is another story. But it's ok. It's her and we will love her through it. To all the mums out there doubting yourselves about how you handle sleep with your child, just decide what matters to you. Once you're comfortable with how you truly feel about it and how you want to handle it, the rest becomes unimportant. That has been my experience.