Thanks! Yes, he definitely rolls, sits, etc... last night was better, I think. I stayed in his room but didn't pick him up until his crying escalated, then just held him a few minutes and put him back. it took awhile but he eventually went to sleep on his own, and stayed asleep -- cried out once but went back to sleep on his own...
Do think we need a longer winddown routine, will have to think about what else we could do!