Mientras duermes
- År: 2011
- Land: Spain
- Sjanger: Thriller, Horror
- Ettromsleilighet: Castelao Productions, Cubica, Coser y Cantar, Canal+ España, TVC, Filmax
- Nøkkelord: jealousy, barcelona, spain, blackmail, manipulation, letter, concierge, sociopath, caretaker, loneliness, stalking, cruelty, apartment building, receptionist, police investigation, radio show, abuse, chloroform
- Regissør: Jaume Balagueró
- Cast: Luis Tosar, Marta Etura, Alberto San Juan, Petra Martínez, Iris Almeida, Carlos Lasarte