2 month old fighting sleep

Arianna

My baby used to be a really good sleeper. And he sometimes still is. But lately I have noticed he is fighting his sleep. I will feed him change him and swaddle him but he won't sleep. It takes over an hour to get him to sleep. My husband says to let him cry. I have a hard time doing that though I know he is physically taken care of. Any advice on what I can do to help him sleep.