Santa in a bilingual home: one Christmas, two languages
A family message can use two languages without repeating every line word for word.
Ask which words the child hears from the people who matter to them. Maybe one grandparent says Papá Noel and another says Santa. Maybe gifts arrive after Nochebuena for one side of the family and on Christmas morning for the other. Agree on the timing first; language can follow naturally.
Write for the moment, not for a dictionary
A two-language Santa note can open in the language the child uses with a grandparent, then close in the language they use at home. It need not duplicate every sentence. Keep names and family details consistent so the story still feels like one visit.
For example: “Abuela told me you helped make the star. I saved you a little surprise for morning. Buenas noches.” Read it aloud with someone who uses both languages at home. Keep the words your child would recognise from their own family.