Cry it out method.

For awhile he has been sleeping in my bed. He slept great for awhile in my bed until recently. Nothing has been working to settle him. He no longer does night feedings and is 8 months old. Tonight he wasn’t settling and I’m sick. Feeling like The cio method is my only option. Does it get easier? Of course I’ll check on him but he loves his crib during the day. Just not at night.