What do u give in the middle of the night??!!!!

My baby is 14months old on whole milk doing just fine, some nights he will sleep through the night but lately he wakes up for his bottle. I don't know what to do or what to give him to drink, I know too much milk isn't good but then what should I give him to drink bcuz he definitely looks for that bottle to drink to soothe back to sleep. What advice can you share ..