Title says it all, really. Apologies for length! He was an OK sleeper until 13 weeks - would feed to sleep around 2200, transfer to crib, and wake around 0300, co-sleep, then wake at 0500 for a feed. Perfectly manageable. His sleep has got worse since then and is still getting worse, and I just don't know what to do. He's now 24 weeks.
Usual pattern: we introduced a bedtime routine at 15 weeks to see if that would help. Depending on how much sleep he's had during the day and timing of last nap, we start bathtime between 1830 and 1930. Bath, massage, sleepsuit, lullaby/story, feed. He usually feeds to sleep and is transferred to co-sleeper crib. If he doesn't feed to sleep, I try to settle him in the crib. Sometimes works, other times he gets too upset and I have to feed again (I'll ride through grumbling but am not happy to tolerate full-on crying).
He is now waking ridiculously frequently. A good stretch now is an hour in his crib. I spend most of the evening trying to resettle him, resorting to feeding if patting/singing, then rocking, fail. This goes on until around midnight, when I usually give up and co-sleep. Sometimes he'll go 3-5 hours between feeds when co-sleeping, though we get some nights where he wakes hourly.
It's starting to really get to me. He's EBF, and refuses to take a bottle from DP, or be comforted by him when upset, although they have a great relationship during the day. We've tried different types of dummy (most days, since week 1) but he just gets upset or spits them out.
The problem, as far as I can see, is a difficulty self-settling, and getting to sleep without breastfeeding (though he can do it as he sleeps well in pushchair and sling, and I have managed to get him down a few times with singing and stroking, which is my preferred resettling method).
What can others suggest to help a baby self-settle and sleep for longer chunks in a separate space? I don't know whether to work on trying to get him to sleep longer chunks (i.e. embrace co-sleeping for a few weeks, then work on transitioning him into a cot bed once he can do, say, 3-hour chunks), persevere with settling using methods other than boob (limited success so far in that I can sometimes get him to settle but he still wakes, iyswim) or what. DM thinks he might sleep better in his own room but I have visions of spending my nights running up and down the hall...
DP is not happy with co-sleeping as a long-term solution which is in no way influenced by him sleeping on the sofa bed and neither of us sleep well with DS in the bed. We disagree on what to do next: DP favours controlled crying or CIO; I disagree with the latter and consider the former a last resort - I also think he's too young for it and that he simply needs me at night more than DP wants to acknowledge.
Thoughts?