Mientras duermes
- annos singulos: 2011
- Patriam: Spain
- genus: Thriller, Horror
- Studio: Castelao Productions, Cubica, Coser y Cantar, Canal+ España, TVC, Filmax
- keyword: jealousy, barcelona, spain, blackmail, manipulation, letter, concierge, sociopath, caretaker, loneliness, stalking, cruelty, apartment building, receptionist, police investigation, radio show, abuse, chloroform
- Director: Jaume Balagueró
- cast: Luis Tosar, Marta Etura, Alberto San Juan, Petra Martínez, Iris Almeida, Carlos Lasarte