WatchPAT is a clinical-grade, FDA-cleared home sleep testing system that uses Peripheral Arterial Tonometry (PAT)to evaluate sleep-disordered breathing. The device is worn on the wrist with a finger probe that measures vascular tone and oxygen levels, along with a chest sensor that records snoring and body position. Through these signals, it calculates indices such as the Apnea-Hypopnea Index (AHI), Respiratory Disturbance Index (RDI), oxygen desaturation, heart rate variability, and sleep architecture across light, deep, and REM sleep.
Data from the WatchPAT is processed immediately after the session ends, but clinical interpretation is required. Most providers deliver results within 3 to 7 business days, depending on review and scheduling. The report includes diagnostic markers such as AHI, RDI, lowest oxygen saturation, sleep staging distribution, and snoring frequency.
WatchPAT has been validated in peer-reviewed studies against polysomnography (PSG), the gold standard for diagnosing obstructive sleep apnea. Correlation levels for AHI and RDI are high, making it a reliable tool for remote diagnosis. It does not replace full PSG for complex neurological or non-respiratory sleep disorders, but for OSA assessment it provides clinically accurate results suitable for treatment planning.
The WatchPAT setup requires three contact points: the wrist unit, the finger probe, and the chest sensor. The wrist device records vascular and motion data, the finger probe captures arterial tone and oxygen levels, and the chest sensor identifies snoring vibrations and body position. The WatchPAT One app guides the patient step by step, confirming sensor placement and recording readiness before sleep.
Yes. The WatchPAT system is built to capture natural body movement during sleep. Temporary interruptions, such as getting out of bed, do not disrupt the recording. The study remains valid as long as the sensors remain attached until the test completes.
Yes. The WatchPAT One is a disposable home sleep study device intended for a one-night session. The sensors are pre-calibrated for single use and cannot be reapplied. After use, the unit does not require return or disinfection, making the process streamlined for both patient and provider.
Yes. WatchPAT is often prescribed to evaluate treatment efficacy after CPAP adjustments, oral appliance therapy, weight changes, or lifestyle interventions. Its ability to measure AHI, RDI, and oxygen saturation remotely makes it practical for longitudinal monitoring without requiring repeated lab visits.
No prescription is required to order the WatchPAT One. It can be purchased directly at Sleeplay as an FDA-cleared home sleep testing device, allowing patients to complete a diagnostic assessment without additional medical gatekeeping.
Yes. Because the WatchPAT One is classified as a medical diagnostic device, it qualifies under most Health Savings Accounts (HSA) and Flexible Spending Accounts (FSA) as a reimbursable expense. Patients may use pre-tax funds to reduce the overall cost of testing.