My studio is small (16 sq. meters / 172 sq. feet), but it has everything you need: a real bed with a firm mattress, a shower, a kitchen (hot plates and toaster oven), and it's located in a fantastic neighborhood, Paris's 20th arrondissement.
This apartment is for ONE PERSON ONLY.
The 20th is a traditionally working class district, rapidly becoming gentrified, but which has kept its village identity. There are fabulous parks nearby (the Buttes-Chaumont, Parc de Belleville, etc…
The apartment is within 5 minutes of two metro lines (the 3 and the 3bis), the tramway (T3b), and many buses (the 26, the 60, the 61, the 69, the 96...)