Girls, hi! Question about sleep, specifically nighttime. We've been pu…

Girls, hi! Question about sleep, specifically nighttime. We've been putting our baby to bed no later than 9 PM since birth, and then the colic started, and they were from 11 pm to 2-3, and sometimes even up to 4 in the morning. The colic ended, but our son still can't fall asleep at 2. We bathe him at 8 pm, feed him and he sleeps for an hour or two, and then he wakes up with energy right until 1-2 am. He might be able to fall asleep himself, but not before 1:00. I thought maybe bathing does this, but no, it's the same even on days when