Marius Hotel offers 32 air-conditioned accommodations, which are accessible via exterior corridors and feature minibars and laptop-compatible safes. Memory foam beds feature Egyptian cotton sheets, down comforters, and premium bedding. A pillow menu is available. 82-inch Smart televisions come with premium cable channels.
Bathrooms include showers with rainfall showerheads, slippers, hair dryers, and toothbrushes and toothpaste. This Istanbul hotel provides complimentary wireless Internet access, with a speed of 100+ Mbps (good for 1–2 people or up to 6 devices). Additionally, rooms include complimentary bottled water and coffee/tea makers. Housekeeping is provided daily.