This sparkling hostel overlooking the Plaza de Jacinto Benavente in the heart of town is a terrific deal. Rooms are colourful, warmly decorated and well sized, and dorms (with four to 10 beds) are rather stylish. It's a friendly place where the staff are eager to connect you with other travellers and help you make the most of your time in Madrid.
Mola! Hostel
La Latina & Lavapiés