Hi,
I'm leaving my room (although my 2 roomates are adorable) so if you are a woman, non smoker, willing to live 30-40 minutes south of downtown Madrid (in Leganés, 3 minutes away from station Julian Besteiro, line 12 of Madrid's metro), you could have :
a furnished room, plenty of light, 290 euro/month, everything included (wi-fi internet access too), near buses, metro and train. The landlord (my roomate) asks you a month of \"fianza\" and you have to sign a contract. Available from December.