My son is almost 2 1/2, we’ve been potty training for about 5 months. He does great during the day. He wears undies and when he has to go he will go by himself without needing help. He will go poop as well but will have some accidents. During nap time and at night he wears diapers. But he will go in his diaper and not try to go potty. The past few days he will pee in his diaper and take it off cuz it’s wet. Any recommendations on what to do? He gets a cup of milk before bed, but I’ve been having him go potty once he has drank it. Someone had recommended rubber diapers? Has anyone tried those ?