- DS is 13 weeks, I’m hoping to get this nailed by him being 7 months as he’ll be going to nursery; do you just suggest cutting some steps?
You don't need him fully independently sleeping ready for nursery. Nurseries fully expect to need to shush/pat (or whatever settling method used) their baby's to get them to sleep. It's what the staff in the baby room spent the majority of their day doing!
What you do want to have achieved by then is to separate feeding and sleeping. Because, while nursery staff are very experienced at getting babies to sleep, what they cant do is breastfeed baby to sleep.
- given his age and the age I want to have this in place by, do you think I’ll have to start all over again when he goes in his own room?
IMO best to get baby sleeping independently in their own cot before moving to own room. I would have the "big cot" in your bedroom to do this, so baby is used to it. I also wouldn't move to own room until night weaned and consistently sleeping through.
I'd wait until the stage where you dont need routinely need to touch baby to settle, before moving the cot to the nursery. And also when sleeping through (or you'll end up cosleeping by the back door when you're too knackered to deal with night wakes)
- I’ve tried this on a night and am almost at the point of getting him to fall asleep on his own. Days are totally different. Will it matter if the day progress doesn’t match the night? Or if the routine is slightly different?
Two different focuses for daytime and night time. Focus on in-cot settling at bedtime and night time, so that this is being learnt.
Daytime naps at this age are all about getting the most sleep possible. So you want baby to go to sleep as easily and possible, as regularly as possible (with short awake times) and also - important skill to learn - to learn to link sleep cycles and sleep for longer. To do this you need to be able to resettle baby back to sleep upon waking.
All of these are best done in something that moves, ie not the cot. I favour a baby bouncer, but a pram would work too.
The bouncer/pram allows you to get baby to sleep as effectively as possible but in an independent way (as opposed to a dependant way by sleeping in arms or a sling). It means you are immediately close-by to respond to baby first moving from deep to light sleep (before waking) and use movement to resettle baby back into a deep sleep.
Move to cot naps once naps lengthen and spread out. Once you're getting two 90 minute plus naps, then follow your night time sleep
routine and move daytime naps to the cot. Happens usually around 5-7 month old (and incidentally, nurseries will also be used to managing pram/pushchair naps)
Aside from anything else it's not advised to do upstairs cot naps under 6 months old due to room sharing SIDS recommendations.
- am I aiming to pat shush etc until fully asleep or drowsy to give him the chance to fall asleep alone?
Important point - you only shush or pat baby is fussy.
The moment baby is calm, still your hand so you are no longer patting (but keep your hand on baby for reassurance, if needed) and stay silent. When settled, just be there to respond if needed but don't actively do anything.