Evidence
Validation summaries you can inspect.
Overnight staging vs PSG
Mattress-based sleep-stage output compared with polysomnography reference scoring.
- 67.5% epoch agreement
- 78.5% REM sensitivity
- −2.6 min Total sleep time bias
Event scoring and AHI
Apnoea and hypopnoea events scored overnight, summarised as AHI against PSG.
- r = 0.94 model vs PSG AHI
- 7.3 /hr mean absolute error
- AUC 0.99 Central apnoea
Can one mattress signal show how hard you're breathing?
Continuous ventilation and respiratory-effort patterns beyond nightly event counts.
- r = 0.86 ventilation
- r = 0.70 respiratory effort
- Multi-night ventilation burden & effort instability
Can your mattress read your heartbeat?
Heart rate and breathing rate from under-mattress motion, checked against ECG and airflow.
- 0.74 bpm still HR MAE
- 3.41 bpm overnight HR MAE
- r = 0.78 beat-to-beat median
Transparency disclosure
- On-site research summaries: available
- Peer-reviewed manuscript / DOI: under review
- Preprint: not yet linked
- Protocol registration / ethics reference: not yet linked (add when approved for public listing)
- Regulatory status: research-stage investigational platform. Not a medical device.