I have a nearly 2 week old baby with similar issues - luckily only on the odd occasion rather than every night. Night before last was as you described - crying every hour and taking ages to settle. We do the same - swaddle, low stimulation etc. Last night we moved him from the co-sleeping bed in our bed to the bassinette next to our bed where he was placed after a feed, change and swaddle but still awake. He put himself to sleep and slept for 4 hours (bliss!!!) before waking for a feed. He then cried intermittently for about an hour (snoozing in between) before going back to sleep for about 2-3 hours and waking for the next feed.

I think we discovered (although repeating it tonight will be the test ) that Oscar gets overstimulated in our bed by our movements and he settles much better in his own space.

As for a baby wearing option - I am a hug-a-bub lover!!!!! The past few days of unsettled sleeping have made him unsettled through the day at times too so the sling has been a life saver. He is held close to me, I have my hands free and I can do things while he gets held and comforted at the same time. One very happy baby and mother here

I hope you get some answers for your little one.