I have a small cup of coffee with evaporated(not sweetened condensed) milk as I settle in front of my desk, if I intend to stay up for at least a couple hours. The evaporated milk has a distinct flavor I like in coffee. If I don't want that then Jasmine tea if I still want caffeine, or Rooibos if I don't. I prefer savory snacks and always keep a good variety of cheeses, pickled vegetables(stuffed olives, cucumbers, bean salads, beets, jalapeno slices, etc...), crackers/crispbreads, dried and fresh fruits, nuts, and cured meats. I pick a selection of what I feel like. To me, sweets are treats. I don't eat/drink anything sugary berry often and am quite sensitive to sweetness. Crisp apple with a quality aged cheddar is my most reliable and berry shrimple go-to snack. It reminds me of hiking with my grandparents when I was young, something we wood always sit and eat in silence together with the landscape. I should revisit some of the places we went and post pictures in an appropriate thread.
Olive sourdough anon has the right idea.