Toddler sleep RUINED after paci weaning, can I fix this??

Over 2 weeks ago we cold turkey took the paci from my 22 month old. It was shifting his teeth and you could really tell. I knew it would be an adjustment but LORD I did not expect this much.

He went from sleeping solid 11 hour nights & 2-2.5 hr naps to barely 9 hour nights and less than an hour in naps. He used to happily go to bed and now I have to sing and rock and shush and soothe and really support to get him down. He has a blanket and stuffies that he holds all night.

I know their sleep needs get lower around 2 but this is self-soothing related. I can tell he needs more sleep like before he just can’t put himself back to sleep in the early mornings and halfway into the nap.

The early mornings and short naps are KILLING me. Will the sleep go back to normal on its own? Should I do CIO?