DS is 26 months and the past week his sleep has gone through the window..

He normally goes to bed at 7-7:30 pm and wakes up at 6-6:30 am. He takes a 2 hour nap from 1:30-2 pm to 4 pm. He sleeps with a pacifier, sound machine and blackout courtains.

Ever since he was 18 months he used to wake around 2 am dropping his pacifier once a week. We went to his room and gave him back his paci and he went back to sleep no problem.

But this past week has been terrible. He started by dropping his paci, but refused going back to sleep and started banging his head on the crib. One night he woke up at 4 am and after an hour of us going back and forth to his room, we brought him to our bed, but he didnt went back to sleep. So he was up for the day and obviously tired...

Also some nights he is screaming once we put him down to bed. I dont understand what is happening to him and why the change all of the sudden? Im really worried about the head banging he has a huge bruise on his forehead.

Any suggestions? I have a 5 year old son, so maybe it’s time to move DS2 to a bed and put him to sleep with his brother? Help!!