Girls, I have a question. I'm giving my son D3 Solidis, I gave it at b…

Girls, I have a question. I'm giving my son D3 Solidis, I gave it at birth, there was a break for 1.5 months, two weeks ago I started giving it again, after that his sleep worsened at night, he often woke up, can't fall asleep, this wasn't like before, he sleeps every day at the same time according to the schedule, has anyone had this? Could it be due to D3?