I spent the night at Hostel Suomenlinna as part of my trip to Suomenlinna. It is a renovated old red-brick Russian folk school. There are separate rooms on the upper floor and group accommodation rooms on the lower floor. For groups, the hostel organizes services according to order. A solo traveler can order a buffet breakfast separately. I stayed in an upstairs room with a double bed. In addition to the double bed, the room had a chair and a small chest of drawers. Since the rooms on the upper floor were later built into the school's attic space, they had small windows by punching them in the ceiling. Raising the window to the rather steeply sloping ridge ceiling creates more space in the room. The sky was visible from the windows, or it would have been if the window had not been frozen on the outside. In my room, there was no possibility of covering the window with a curtain, which in summer can cause a surprise, at least for foreigners, due to the lack of darkness.