My 2 year old who has cmpa (cows milk protein allergy) still has a bottle of oat milk at night to keep his calcium intake up but I’m struggling to swap the bottle for a cup/ other type of juice cup, I’ve tried transitioning bottles but he hates them and refuses to use them and screams all night. What bottles or cup have you tried? He can drink out normal cups and straws and pretty much any other cup but refuses them at night. I haven’t got a clue what else to try, any help would be appreciated ☺️