Snug swaddle? Tight even? White noise? Dark room?
Otherwise, I know with Natalie one day she FINALLY slept longer more consistently, which was good since Josie often had me occupied at the 45-minute mark and I was running for the bedroom to replace the paci with limited success.....so I had to give up or I would have lost my mind AND some quality playtime with both my girls.
With Josie, I DID keep working at it, because with my PPD if I didn't get a break, I was a wreck. I'd consider giving up and going with the flow for a few days and then coming back to it. You might find a new trick, get a new idea, or notice something new about him that you can use to help you, and meanwhile you shouldn't be going so crazy trying to get sleep from a stone....or something like that! :lol: