In Marrakech (or Marrakesh if you prefer) you will find that everything centres around the Djemaa el-Fna Square through all hours of the day and night so it's best to stay at a hotel near there even if it costs more (especially in a city where one cannot help getting lost all the time and where everyone stays outside till late in the night).
It is in the famous Djemaa el-Fna square that you will also find ginseng and cinnamon tea though hot mint tea (what is humorously referred to as Moroccan whiskey) is what Morocco is famous for.
Fresh orange juice is aplenty here and quite cheap too and is good for your digestion after the couscous or mutton tagine!
Unfortunately no amount of photographs will be able to reproduce the different smells or noise in the square. You have to be there to smell and hear for yourself! If you should eat at any of the restaurants nearby ask to go up to the terrace where you can enjoy your meal with a commanding view of the square during the daytime and brightly illuminated stalls at night.