Withings Sleep Analyzer (Under-mattress sleep sensor)
Under-mattress sensor: sleep cycles, heart rate, snoring, and apnea, with nothing to wear.
- What it is
- Under-mattress sensor: sleep cycles, heart rate, snoring, and apnea, with nothing to wear.
- Best for
- Contactless tracking · Cycle analysis · Snoring detection
- Platforms
- iOS · Android
Strengths
- Nothing to wear: sensor placed under the mattress
- Tracks cycles, heart rate, and snoring
Weak points
- Apnea detection is indicative, not diagnostic
- Availability in Canada should be verified
What is Withings Sleep Analyzer (Under-mattress sleep sensor)?
The Withings Sleep Analyzer is a sleep sensor designed to be placed under the mattress. It operates without physical contact with the user, allowing continuous monitoring of nocturnal parameters without the need to wear an accessory on the wrist or body. The device analyzes sleep cycles, heart rate, and respiratory movements. It is compatible with most mattresses, except for water or air-filled models, and transmits collected data to a dedicated mobile application.
At a glance
- Type
- Under-mattress sensor
- Platforms
- iOS, Android
- Subscription required
- No
- Free trial
- Yes
- French
- Yes
- Availability
- France, European Union, United Kingdom, Australia
- Uses AI
- Yes
- Evidence level
- Published studies
This information is indicative and may change: only the publisher's own website is authoritative.
What the AI does: The AI analyzes sensor data to detect sleep cycles, snoring, and sleep apnea episodes.
Who uses Withings Sleep Analyzer (Under-mattress sleep sensor)?
Home users
Individuals who wish to obtain sleep data without wearing a connected device.
Ecosystem users
Individuals already using the Withings app to centralize their health data.
Key features
Sleep analysis
Measures sleep duration, time to fall asleep, and wake-up time.
Apnea detection
Medical device capable of detecting sleep apnea episodes with severity classification.
Snoring tracking
Records the duration of snoring during the night.
Smart home
Compatibility with IFTTT to automate scenarios such as controlling lights or a thermostat.
Pricing
US$149.95 in the United States, CA$199.95 in Canada. Optional Withings+ subscription available.
Pricing recorded on November 1, 2026. Excluding taxes and shipping. Prices change: the amount that applies is the one shown by the publisher's own checkout.
One-time purchase
US$149.95 / CA$199.95
Standard price for the device, including free access to basic data.
- Sleep analysis
- Apnea detection
- Free basic data
Withings+
Optional
Optional subscription for advanced analysis and personalized support.
- Trends and insights
- Health coaching
The device is sold as a one-time purchase. An optional Withings+ service subscription is offered to access in-depth health analyses and advice, but basic data remains accessible for free.
Use cases
Nightly tracking
The sensor records deep, light, and REM sleep phases.
Outcome: Obtaining a daily sleep score.
Automation
The device detects when the user goes to bed or gets up.
Outcome: Automatic triggering of connected equipment via IFTTT.
How it works in practice
Installation
- 1Place the sensor under the mattress at chest level.
- 2Connect the device to the Withings app via Bluetooth.
- 3Configure the Wi-Fi network for data synchronization.
In your daily routine
Software compatibility
Requires a device running iOS 18 or Android 12 or newer.
Ecosystem
Integrates with the Withings app and IFTTT-compatible services.
Known limits
Mattress compatibility
Does not function with waterbeds or air mattresses.
Configuration
Initial setup cannot be performed from a computer.
Consider something else if
- Smartwatches with sleep tracking
- Smart rings
- Sound-based tracking applications
How to use it
Setup
The sensor must be placed between the bed frame and the mattress, centered at chest level.
Review
Data can be reviewed each morning via the Withings app on a smartphone.
Frequently asked questions
Does the sensor need to be recharged?+
No, the Withings Sleep Analyzer is powered by an included power adapter.
Can it detect sleep apnea?+
Yes, it is certified as a medical device for the detection of sleep apnea episodes.
Is it compatible with all beds?+
It is compatible with most mattresses, except for water or air-filled models.
Is the data paid?+
Access to basic data is free via the Withings app.
How is the data transmitted?+
The device uses a Wi-Fi connection to synchronize data to Withings servers.
Sources
Evidence level shown: Published studies
Validated against polysomnography for the detection of moderate to severe sleep apnea. It does not replace a medical diagnosis.
No published source specific to this product has been identified so far.
Background on the approach
General references on the category or technology: they do not cover this specific product.
These references cover the approach or technology, not an evaluation of the product by us. None of these links is an affiliate link. Read our method.
