Great Charleyfrog. So when I decided how to handle wake-ups and was consitent with this I obviously picked the wrong thing to do.

10 minutes. Me causing DS to wake even though we no longer co-sleep (and he sleeps through me going to bed, the bathroom and my room are on either side of his room).

You know what, I'm so upset by this I'm not going to comment. It's so stupid. Way to go to make me feel bad that DS doesn't sleep well. My own mother did a good enough job with "well I don't understand what you're doing wrong" and "My mum was good with children, all hers slept through from six weeks" and other crap like that without a so-called "expert" telling me.

Hey, I'm the new sleep expert folks! I can cure every child!

You need to sit your baby down and talk to them. Say these words:
"It is nighttime, it is dark. You lie down and close your eyes. You shush. You go to sleep. You don't wake up until Mama comes and wakes you up at 7.30 tomorrow morning."

Tell your child this from birth. It works because the baby knows what's going on. If it doesn't work then your baby is clearly too stupid to understand what you're saying and it's your fault for not eating a high-baby-IQ diet in pregnancy or talking to baby enough in the womb.