Round the clock Russian
If you're on the hunt for the likes of borscht or pelmeni in the wee small hours of the morning - or perhaps just craving anything edible at all - the good news is that the Café Rossia on Charlottenburg's Stuttgarter Platz is one of those rare Berlin eateries that stays open round the clock, seven days a week.
Offering a wide range of tasty Russian treats at reasonable prices, the downside is that you'll be chowing down in what's essentially a glass box. Not the kind of place that's necessarily easy to feel cosy in, although certainly perfect for watching the world go by.
That said, if you really can't face such exposure while eating, the attached Russian supermarket is also a 24-hour deal, including - again uncommonly for Berlin - Sunday openings.
Offering a huge range of fruit and veg, as well as an interesting variety of Russian staples, the 'Russia' supermarket has probably saved the day for many emergency meals. Good to know that it's there.
Despite Charlottenburg's rather staid image, it's actually a surprisingly bountiful source of late-night eats. The Schwarzes Cafe in Kantstrasse is open 24 hours on selected days of the week, while the well-regarded Chinese restaurant Aroma - also in Kantstrasse - keeps its kitchen open until 3am.
Cafe Rossia 24-hour cafe and supermarket: Stuttgarter Platz 36, 10627 Berlin