The Cirque Hostel is a new, cheap, small and quiet place to sleep in Lille.
The only hostel in Wazemmes, a popular and cultural place in the center town.
This is also a coffee shop too, you can drink and eat fairtrade, locals, organics and homemade products.
With the ESN card you'll pay 3€ instead of 4.5€ for your breakfast and you can eat a typical meal from Lille, a welsh for 10€ with a free drink .

Website:
http://lecirquehostel.fr/?lang=en
https://www.facebook.com/lecirque.hostel