by Withings • Model: WSM02 / Sleep Rx (K231667)
The Withings Sleep Analyzer is a contactless, pneumatic-based mat placed under the mattress to provide lab-precise sleep metrics. [cite: 47, 1149, 1150] It measures sleep quality, resting heart rate, and snoring while functioning as a clinical aid for diagnosing obstructive sleep apnea (OSA) in adults. [cite: 46, 54, 1151]
Eligibility may vary by provider and plan. Check with your HSA/FSA administrator for specific details.
Evidence-based evaluation by medical professionals
"The premier non-wearable solution for long-term sleep apnea screening and cardiac monitoring, combining medical-grade accuracy with zero user burden."
The Withings Sleep Analyzer (marketed as Sleep Rx in the U.S. for clinical applications) represents a shift in home sleep diagnostics by eliminating the need for wearables. Placed discreetly under the mattress, it utilizes advanced pneumatic sensors to measure heart activity via ballistocardiography (BCG), respiratory rate, and body movement, while an embedded microphone identifies snoring and breathing cessation events. Clinical validation studies, including those conducted at Hôpital Béclère, demonstrated that its 'Withings Index' matches gold-standard polysomnography (PSG) with 88% sensitivity and 88.6% specificity for moderate-to-severe sleep apnea (AHI ≥ 15). The device is particularly effective for longitudinal monitoring, as its passive nature ensures high patient adherence over months rather than just a single night. While it lacks the direct brain-wave tracking of EEG-based devices, its ability to provide shareable clinical PDF reports and integrate with smart home environments through IFTTT makes it an exceptionally versatile tool for both patients and clinicians.
Highest-rated device in Home Sleep Tests category
Withings
Withings
Sunrise SA
This device achieved the highest overall score among 25 clinically evaluated home sleep tests devices, demonstrating superior performance across key testing protocols and real-world validation metrics.
Verified retailers and current pricing
FSA/HSA eligible. [cite: 1230]
Standard consumer version; not the Sleep Rx model.
Requires Wi-Fi connection for initial setup and data sync.
