I am renting a bedroom in my sun filled very nice, clean, and comfortable Madrid Centre Apartment.
Double room, well equipped two-bedroom apartment, with one additional occupant, me :).
If you are looking for a great convenient spot from which to explore the city and enjoy all the wonderful things Madrid has to offer including wonderful food, music, bars, sites, parks, etc. ...this is the place for you!
You can use the living room and the kitchen, and have your own space in the fridge and cupboards, in case you want to cook and you can do your laundry if needed.
The neighborhood is very cool and filled will great restaurants. The area is very safe, and tends to be a destination spot for many visitors. I think its the best place to be in Madrid and I can help you find great things in the area, or anywhere in the city.