Dropping the Swaddle

My LO just turned 4 months yesterday and rolled once so we are dropping the swaddle. I put him in the Merlin sleep suit last night ... It was horrible up every 1-2 hours. He's never been a great sleeper but I felt we were finally getting through the 4 month sleep regression and now we are back to square one. Anyone drop the swaddle and it got better? I guess just looking for reassurance of mamas who made it to the other side! Photo of LO because even if he doesn't sleep at least he's cute!