I am a physiotherapist and alternative practitioner specializing in physiotherapy, and have been running my own practice for 38 years. The Luna vagus nerve stimulation device from ZenoWell is a very good device for me to improve my sleep. In the evening, I use the sleep setting, and in the morning, sometimes the meditation setting and sometimes the relax setting. I have also recommended the device to several of my patients. Two of my patients have purchased it as a result of my recommendation.