FDA Breakthrough Device Designation

Sleep-Lab Leg Movement Data, From Your Patients' Own Beds

RestEaze sends patients home with a soft ankle band and returns scored, multi-night leg movement data to your clinic. No lab night to schedule, no single-night snapshot to second-guess.

What RestEaze measures, every night

  • LMS

    Leg Movements

    Every leg movement during sleep, with its onset, duration, count and hourly rate.

  • PLMS

    Periodic Leg Movements

    Repeating series of leg movements, scored to AASM criteria and reported as a PLM index.

  • LMA · PLMA

    Cortical Arousals

    Brief arousals that fragment sleep, detected from the band's sensors and linked to the leg movements they accompany.

  • TST · WASO

    Sleep and Wake

    When sleep starts, how long it lasts and how often it breaks: sleep onset, total sleep time, WASO and sleep efficiency.

Tanzen Medical Inc

Developed With Leading Research and Clinical Partners

RestEaze development has been supported by grants from the U.S. National Science Foundation (NSF), the National Institutes of Health (NIH) and the Defense Health Agency (DHA).

The Diagnostic Gap

The Movements Breaking Your Patients' Sleep Are Rarely Measured

Leg movements during sleep are central to diagnosing and managing sleep-related movement disorders, and many come with cortical arousals that fragment sleep. Today they are measured almost only in an overnight lab study.

7–10%
Of Americans May Have RLS

Restless legs syndrome may affect up to 7–10% of the U.S. population, yet the leg movements behind it are rarely measured outside a sleep lab.

Source: NINDS

$3,000
Average In-Lab Sleep Study

An overnight polysomnogram averages about $3,000 and can reach $10,000, for a single night in an unfamiliar bed that misses night-to-night variability.

Source: Sleep Foundation

87–94%
Undiagnosed After Seeing a Doctor

In two large studies, 87–94% of people with frequent, distressing RLS symptoms who raised them with a doctor were not diagnosed with RLS.

Sources: Hening et al., 2004; Allen et al., 2005

7M
U.S. Children With ADHD

Restless legs syndrome is reported in 11–54% of children with ADHD, against 2–4% of children overall, and it is easily missed.

Sources: CDC; Ghayad et al., 2025

The RestEaze™ Ecosystem

Built for In-Home Leg Movement Monitoring

One band, one dashboard, one workflow. RestEaze records leg movements across multiple nights at home, scores them to clinical standards in the cloud, and gives your team results it can review in minutes.

  1. The band records at home
  2. The app syncs each morning
  3. The night is scored in the cloud
  4. Results reach the dashboard

The Band

  • Five sensors in one bandSensor suite used for leg movements and position, heart rate, HRV, respiration, skin conductance and temperature.
  • Starts on its ownOn-body detection begins recording when the band goes on and stops when it comes off, so patients have nothing to set up in bed.
  • One leg or bothUse one band or a pair. Paired bands can automatically sync their clocks, so movements line up across both legs.
See how it's built

Periodic Leg Movements During Sleep

PLMS
121
PLMSI
17.8/hr
PLMSA
18
PLMSAI
2.6/hr
Drag across the chart to zoom

The Dashboard

  • Automated leg movement scoringLeg movements are detected, grouped into periodic series and scored to AASM criteria, with PLM indices for every night.
  • Sleep and arousal metricsTotal sleep time, efficiency, WASO and cortical arousals, night by night and across a study.
  • Patients, studies and trendsManage patients and cohorts, follow treatment response over time, and export the data, with PDF reports coming soon.
Explore the analytics
Our Solution

From First Consult to Treatment Tracking, Without a Lab Night

Measure leg movements at home before treatment, then again after, and see whether it's working, all without an overnight lab stay.

  1. 1
    Baseline

    Send the patient home with RestEaze for several nights: leg movements, arousals and sleep, plus their sleep diary.

  2. 2
    Review

    Scored nights in the dashboard, with the PLMS index against a clinical threshold and how much it varies night to night.

  3. 3
    Treat

    Start or adjust treatment based on objective data, not a single lab night.

  4. 4
    Follow up

    Repeat at home and compare with the baseline to see whether movements and sleep are improving.

PLMS Index, Before and After TreatmentSample data
Each point is one night at home. The shaded band is above the clinical threshold of 15 per hour (which can change by age, and other factors).

Bring RestEaze™ to Your Clinic or Study

Talk with our team about how multi-night, at-home leg movement monitoring can support your diagnoses, treatment tracking and trial endpoints.