Hasn't 'just' fallen asleep since 2 weeks old
You have wildly inaccurate expectations if you thought any baby did this, ever. Getting baby to sleep requires a lot of effort and hard work - it always, always does, with all children.
Much of your post strikes me as FTM unrealistic expectations that baby would get tired, understand he was tired and go to sleep soundly, like in the movies. I don't mean to be insulting in saying that, just pointing out that the biggest problem here isn't your son, it is your expectations.
In order to go to sleep, babies are helped by three factors
- Comfort (sucking is natures way to comfort and calm babies)
- Calm (even tempo, rhythmic, consistent movement is the easiest way to calm)
- Safe and protected (closeness to you is the natural way for this feeling)
Healthy sleep habits also mean baby goes to sleep where stays asleep, so not moved elsewhere once already asleep.
The method you have found that works to get baby to sleep is:
- In your arms (safe and protected)
- Feeding to sleep (sucking for comfort)
- Rocking (movement for calm)
You ticked all the necessary boxes for baby to sleep. Hard work and maybe not ideal, but it works.
So you give me a list of lots of things that don't work. I'll challenge you on that and will suggest that none of these things will not work with your DS. It's just that you've not been persistent enough and consistent enough with them.
If you want your DS to sleep more independently, it is not about teaching him not to need any of the essentials for sleep. It is about replacing them with something more sustainable for you. You cannot just hope that baby will feel calm, you need to proactively make him feel calm. You can't just hope he will feel safe and protected, you need to be proactive about making it so. And so on.
One of the key factors in setting your expectations here is dummy use and/or feeding to sleep.
Realistically, babies who do not suck to get to sleep will cry. It's as simple as that. So set some expectations here. Either:
- Accept you will feed to sleep every time
- work harder on getting dummy accepted (I'm a HUGE dummy fan and would do this)
- Accept that you baby will cry when going to sleep. You will still be there comforting and helping, but without that active sucking there will be crying.
That last point is key here. When you're saying that bouncers, pushchair, carseat etc for naps "doesn't work". It's not that it won't work. It's that baby is crying because baby is not sucking. So you have to work harder to make baby feel comforted with the movement alone and accept that without sucking there is going to be whinging while going to sleep.
My personal recommendations would be one of these two options:
(1). Breastfeed baby lying down on your bed (safe sleeping, so no pillow, duvet etc). Feed to sleep with you curled around baby's body. Stay there for sleep, feeding back to sleep if stirring awake. Do this for naps as well as night. Plan for this being a long term thing.
This is an Attachment Parenting approach
(2) Do naps in the bouncy chair. You sat on sofa with a pot of tea and a boxset, baby in bouncer at your feet. Use your feet to bounce. Even tempo, consistant and non-stop. Be totally and utterly relentless about it - do not give up. Either work to get dummy accepted (with some children this requires effort) or accept baby will whinge and cry in going to sleep.
At bedtime use a swaddle sheet, tight around shoulders but not around legs (note: Swaddle use should be established by 3 months at the latest and be used constantly). This recreates the safe/protected feeling of being enclosed. Feed to drowsy, Sway while winding on your shoulder (baby already swaddled) and put down and pat through whinging if you don't use a dummy.
This is an Independent Sleep approach.
Whichever method you go for, watch awake times between naps. As a general rule baby wants to be awake for double previous nap length, plus or minus 15 minutes and never longer than 2h awake in one go. This will avoid over tiredness which will help night sleep. So a 30 minute nap means start working on getting baby back to sleep 45m from waking up, so that baby is actually asleep between 45m-75m from waking up.