Nightmare Disorder Index

The Nightmare Disorder Index is a 5-item screening measure for DSM-5 Nightmare Disorder.

The validation paper is in press: Dietch, J.R., Taylor, D.J., Pruiksma, K., Wardle-Pinkston, S., Slavish, D.C., Messman, B.A., Estevez, R., Ruggero, C.J., & Kelly, K. (in press). The Nightmare Disorder Index: Development and initial validation in a sample of nurses. Sleep.

You can find a copy of the measure here: Nightmare Disorder Index


Students, clinicians, non-funded users:
This measure is free for personal and individual clinical use.

Commercial users, healthcare organizations, funded users:
Please contact Jessee Dietch ( for
permission and licensing information.