The Science Shows


  • The CDC has declared insufficient sleep a ‘public health problem’, with more than 1/3 American adults not getting enough sleep on a regular basis.

  • Sleeping < 6 hours on a regular basis per night has been shown in studies of > 1 million subjects over decades to increase obesity, diabetes, heart disease, cancer, and dementia.

  • An estimated 164 million Americans struggle with sleep at least once a week.

  • Everyone loses deep (Delta) sleep as we age (60% – 70% by our mid to late 40’s and 97% by age 75). Deep sleep repairs body tissue and bone, causes cell regeneration, balances the immune system, and reduces beta amyloid plaque in nerve cells.

Z•GEN helps you fall asleep

Z•GEN also promotes Deep Sleep, a restorative stage of sleep, helping you maintain sleep. Z•TRACK instructs Z•GEN as to which frequencies to generate. Z•TRACK learns from the wearer’s own data which frequencies are required and when. This closed loop system of communication is driven by your data, through Z•TRACK.

Machine Learning in SOLTEC•SMS

Your data is measured and analyzed night after night. Z•TRACK teaches Z•GEN through an algorithm developed through an understanding of decades of sleep lab research. The moment it starts, Z•GEN knows where you are in your nightly cycle.

This is an Active System

With the data streaming in through Z•TRACK, Z•GEN is ready to work, a gentle tingle may be felt. A better night’s sleep typically follows. Although user experience may vary from night to night, we anticipate a general trend toward improved sleep. Examine details and gain insights about your sleep health with the SOLTEC•Z™ App.

Learning While Doing

It is well known that learning is enhanced by experience. The same is true of sleep. The better sleep you get, the more your body becomes conditioned to it and the easier it is to maintain. SOLTEC•SMS was created to help you learn about and experience deeper, rejuvenating sleep.

SOLTEC•SMS is not simply another wearable.

It improves your sleep!

Image of woman using Z TRACK for health


The cause of poor sleep, including a reduction in deep sleep, and stress are the same. They both result from reduced parasympathetic activity of the Autonomic Nervous System (ANS), responsible for relaxation during the day and rejuvenating sleep at night, and over-activity of the sympathetic division of the ANS, used for fight or flight. The SOLTEC•SMS safely and non-invasively supports increased activity of parasympathetic division and reduces the activity of the sympathetic division without drugs or side effects.


SOLTEC HEALTH has been investigating and researching sleep since the company formed in 1997. As sleep experts, we are guided by science. To be deemed safe, effective and worthy of further exploration, our technology solutions are continuously subjected to rigorous independent research and testing.


Z•GEN, with guidance from real-time data analyzed by Z•TRACK, provides the stimulus to increase sleep duration and quality. Although this is a tremendous accomplishment, the personal results do not happen overnight. There is typically about a 30-day gradual adaptation period for your sleep to change more substantially.


A Letter from Our CEO

For a more in depth look into our past, present and future, peruse this letter from our CEO, Dr. Dan Cohen.



Z•TRACK doesn’t just track data thoroughly and with precision, it learns from that data and adjusts the activity of Z•GEN for each, individual user, providing customized frequencies associated with sleep. This machine learning is personalized. The more you wear Z•TRACK, the more it learns.

Engineered specifically for sleep, Z•TRACK measures pulse rate variability which it then correlates with built-in motion analysis to provide an accurate picture of your sleep.

Z•TRACK doesn’t just track sleep metrics thoroughly and with precision, it learns from that data and adjusts the activity of Z•GEN to generate frequencies, which are personalized for you.

Z•TRACK truly is like having a sleep lab on your wrist.