Oppressive, frightening, nerve-wracking: nightmares are particularly disturbing dreams. They are considered pathological when they occur frequently (>1 episode per week) and cause daytime fatigue, mood alteration and anxiety. Although Imagery Rehearsal Therapy (IRT) has shown some effectiveness, some patients do not respond to this treatment. A team has now developed a promising new technique combining this classic therapy with the Targeted Memory Reactivation (TMR) method. Thanks to this new therapy, the patients'nightmares decreased significantly and their positive dreams increased.