By Ruchir P. Patel, MD, FACP, FAASM
Medical Director – Insomnia & Sleep Institute of Arizona
For over a decade as a Board-Certified sleep physician, my mission has been simple: help patients sleep again. Through PAP therapy, cognitive behavioral therapy for insomnia (CBT-I), circadian rhythm management, and evaluation of complex sleep disorders, I’ve labored to help countless patients get their sleep back.
But full recovery hasn’t been possible in every case. Many struggle with chronic insomnia not as an isolated problem, but as a brain-regulation issue, often linked to depression, anxiety, trauma, post-concussion symptoms, or chronic stress. Even with optimal behavioral treatment, CPAP, or whatever the treatment may be, their brains remain overactive, preventing deep, restorative sleep.
When Sleep Treatment Alone Isn’t Enough
Chronic insomnia rarely exists in isolation. I often saw patients whose insomnia persisted despite:
- CBT-I
- Proper PAP therapy
- Careful sleep hygiene
Research confirms this overlap. Chronic insomnia is associated with hyperarousal of the prefrontal cortex and limbic system, impaired emotional regulation, and altered sleep–wake network connectivity.
While CBT-I remains the gold standard and helps most patients, some individuals require additional support because their neurobiological regulation remains disrupted. This is where neuromodulation can complement behavioral therapy, by targeting the brain circuits that perpetuate insomnia and comorbid mood disturbances.
Exploring Neuromodulation: From taVNS to TMS
Our clinic first explored transauricular vagal nerve stimulation (taVNS), a non-invasive therapy that stimulates a branch of the vagus nerve. In clinical studies, taVNS improved insomnia, anxiety, and stress dysregulation. Seeing patients experience meaningful improvements after years of failed treatments confirmed the promise of neuromodulation for sleep-related brain dysregulation.
During the COVID-19 slowdown, I began extensively studying Transcranial Magnetic Stimulation (TMS). Hundreds of peer-reviewed studies showed that:
- TMS is FDA-approved for treatment-resistant depression
- Treating depression with TMS improves sleep outcomes
- TMS reduces cortical hyperarousal, a core feature of chronic insomnia
- Anxiety subtypes also respond, and patients often report improved sleep architecture
Emerging research also suggests that TMS may directly influence sleep regulation, improving sleep continuity, slow-wave activity, and overall sleep quality in certain patients with insomnia, even when mood symptoms are mild. While this area is still being explored, these findings support the idea that neuromodulation may have a direct role in restoring healthy sleep patterns.
To deepen my expertise, I completed a visiting fellowship at Duke University Medical Center, training directly with leaders in TMS research. I realized TMS is not simply a psychiatric tool, it’s a brain-regulation tool relevant to sleep medicine.
Filling a Gap in Arizona
Despite its strong evidence, I discovered no free-standing TMS centers in Arizona outside psychiatric practices. Many patients with insomnia and mood symptoms hesitate to visit a psychiatry clinic, even when mental health contributes directly to their sleep problems.
I wanted to create a physician-directed, integrative environment where patients could access neuromodulation without stigma, alongside comprehensive sleep care. This led me to found TMS Institute of Arizona, Arizona’s first stand-alone TMS center outside a psychiatry practice.
How TMS Complements Sleep Medicine
TMS is not for every patient with insomnia. Most respond well to CBT-I, PAP therapy, and behavioral strategies. But for those whose insomnia is linked to depression, anxiety, trauma, or neurological dysregulation, TMS can:
- Reduce hyperarousal and improve sleep continuity
- Enhance mood and emotional regulation
- Make the brain more responsive to CBT-I and other sleep strategies
By addressing both the sleep system and the brain circuits underlying hyperarousal, TMS can help certain patients achieve restorative sleep where traditional treatments fall short.
A Sleep Physician’s Philosophy
My primary identity remains as a sleep physician. TMS does not replace sleep medicine. It expands our ability to help patients whose brains need more than behavioral therapy alone.
For patients struggling with persistent insomnia, especially when accompanied by depression, anxiety, or trauma, we can evaluate the underlying contributors and guide them toward the most appropriate treatments, whether that’s CBT-I, PAP therapy, circadian management, behavioral support, or, in select cases, TMS.
Disclaimer: The information provided in this blog post is for educational and informational purposes only and is not intended as a substitute for professional medical advice, diagnosis, or treatment. Always consult with a licensed healthcare provider for recommendations specific to your individual health needs.
