4 month wakeful?

PhillyGal34

I remember seeing this but not really paying attention because DS was sttn so I figured it wouldn't apply. He turned 4 months old this week and like clockwork he's been waking up a few times at night when he hasn't for weeks! How long does this last ? Any tips? I was going to move him to his crib but now I'm thinking of keeping him in his cosleeper so I can just roll over and feed.

Thanks!