Zmachine® Synergy

Combining our FDA-cleared EEG-based sleep staging technology with traditional respiratory measures, the Zmachine Synergy delivers everything you’d expect in a next generation home sleep testing system.


Zmachine Synergy

  • Easy for Patients
    With crystal clear instructions, ultra-small package, and a streamlined setup procedure, your patients will find the Zmachine Synergy easy to use and comfortable to wear during sleep.
  • Easy for Providers
    Score and interpret the data yourself, or let our team of expert registered PSG technologists and board certified sleep physicians (licensed in all 50 states) handle everything for you with scoring and physician reports available within 48 hours of data upload. All data is viewable and editable via our advanced web portal.
  • Advanced Sleep Reports
    With the addition of EEG-based sleep staging and a 3D body position sensor, the AHI is calculated on sleep time, REM time, and sleep position (not simply recording time). This results in accurate and informative AHI values, especially for those patients with lower severity, difficulty sleeping, and those with position dependent symptoms. The addition of EEG also enables the reporting of non-desaturating hypopneas (terminating with EEG arousals) for improved event reporting.
  • Full Range of Signals
    EEG-based sleep staging, respiratory effort (RIP), respiratory airflow, snore, 3-axis body position & activity, and pulse oximetry make this system complete and ready to use.
  • Insurance Reimbursement
    Provider is solely responsible for determining the applicability of any reimbursement code prior to use.

    CPT 95806 - Sleep study, unattended, simultaneous recording of ventilation, respiratory effort, ECG or heart rate, and oxygen saturation

    HCPCS G0399 - Home sleep test (HST) with type III portable monitor, unattended; minimum of 4 channels: 2 respiratory movement/airflow, 1 ECG/heart rate and 1 oxygen saturation



Software & Documentation

Instructional Videos

More coming!


You can order disposables with upload credits directly through the Zmachine Synergy Client Software. Click Account -> Billing -> Order Supplies.

General Sleep Corporation warrants the Purchased Product (Zmachine Synergy) to be free of all defects in material and workmanship for two years from the date of Purchase. The effort belt, effort belt cables, and oximeter finger probe are guaranteed for one year. This warranty is extended to the Original Purchaser only.

Within this period of warranty General Sleep Corporation will repair or replace, free of charge, any product defective in material or workmanship. All warranty repairs and service must be performed by General Sleep Corporation. Contact General Sleep to obtain a Return Material Authorization (RMA) prior to shipping systems back for evaluation and/or repair.

The Zmachine Synergy uses the same technology to acquire and process EEG data as the validated Zmachine Insight/Insight+.

The Zmachine Synergy can be returned for any reason within 30-days. We do not refund shipping or used disposables.

All Zmachine systems are sold direct through our company (General Sleep Corporation, Cleveland, OH). Contact us with questions or to purchase a system (we're really very friendly!).

Contact Us

General Sleep

26250 Euclid Avenue, Suite 709
Cleveland, Ohio 44132
United States

  • (888) 330-4424