Scarlett Café

Address: Plaza del Emperador Carlos V, 10, Madrid. A quick check on the map can help confirm the entrance and the easiest approach.

Looks like they're open every day, so you don't need to worry about timing your visit around a closed day.

According to available data, this is a cafe. Usually a better fit for coffee, desserts, short meetups, or getting a bit of work done at a table.

Cuisine: bagels, breakfast, coffee shop, sandwiches, savory pancakes, tea, smoothie. Gives you a general sense of what's on the menu — useful if you have a preference or dietary restriction going in.

Wi-Fi is available. Speed and stability can vary a lot — if you're doing serious work, having a backup is never a bad idea.

Accessibility appears to be limited. Entry may be possible only with assistance or with restrictions around access and movement inside, so it's best to confirm the details in advance.