In our Iberian study of 811 outpatients with schizophrenia we found that patients self-reporting sleep disturbances showed greater symptom severity, worse quality of sleep, worse SWL, and less caregiver support. SWL was also worse for caregivers of patients with schizophrenia reporting sleep disturbances. A growing body of research has revealed that improvements in several factors (i.e., adherence, cognition, symptoms, and access to services) may be necessary to improve patients’ SWL [3]. Family support and sleep hygiene may also have beneficial effects on these patients’ SWL. Future longitudinal studies should explore if insomnia is only a characteristic symptom of schizophrenia or whether ongoing sleep disturbances might also affect the course and the prognosis of the illness.