7 month old won’t sleep in crib at night

Janice

My baby won’t sleep in his crib at night. He use to sleep fine but now for the last month he’ll just cry at night unless I’m holding him or he’s sleeping on the couch. He naps in his crib throughout the day just not at night. When I do get him to sleep in there at night he’s up within an hour. Any advice would be great. I’m so sleep deprived