The usual suspects are the culprit in this case: foods and beverages containing caffeine (including chocolate), alcohol, dense and fatty foods and spicy foods will all contribute to your suffering night sweats symptoms.
Additionally, I think people underestimate how close to bed they should avoid these foods and beverages. An hour isn’t enough time: I encourage you to avoid these foods at least 2 to 3 hours before bed and ideally you shouldn’t consume either caffeine or alcohol in the evening at all (at least while you’re trying to determine the cause of your sweating at night).
You will find some foods and beverages that help prevent your night sweats. But I’ll leave that for the next section below.