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Quick verdict
Is the Withings Sleep mat worth considering?
The Withings Sleep is the tracker for people who will not wear one. A thin pad under the mattress reads heartbeat, breathing and movement through the mattress, listens for snoring, and reports to the app over Wi-Fi — with no subscription and nothing to charge. That makes it the most effortless data source in our catalogue and the only one that measures snoring. Its limits are the flip side of its design: it knows one side of one bed, it needs a compatible mattress and a socket, and its stage estimates carry less physiological signal than a device on the skin. Same bed every night: buy it. Frequent travel: buy the ring.
Yes — mains via USB adapter, 5 V 1 A (Withings documentation)
Portable
No — installed under one mattress
Connected / app
Wi-Fi required; Withings app (Withings)
Subscription
None
Mattress
Spring, foam or latex; not waterbeds or air mattresses (Withings)
Size
Approx. 637 × 190 × 5 mm, 350 g (Withings documentation)
Primary differentiator
Nothing to wear or charge; snoring measure
Main limitation
Single position, single bed
Only verified fields are shown. Anything not listed was not confirmed from manufacturer documentation.
The problem it addresses
Why the Withings Sleep mat exists
Every wearable makes the same demand: put it on, keep it charged, keep wearing it. A meaningful share of people who buy a tracker stop wearing it within months, and their data stops with it. A sensor under the mattress removes the demand entirely — the bed does the tracking, and the only night it misses is the one you spend somewhere else.
It also measures the one thing a wearable cannot hear: snoring. For someone whose partner complains, or who suspects their own breathing is disturbed, that measure is a reason to choose the mat that has nothing to do with convenience.
Design & usability
What decides whether the Withings Sleep mat works for you
1
Sensor approach
A pneumatic pad detects pressure changes from breathing, heartbeat and movement through the mattress; a microphone detects snoring. Signal is weaker than skin contact, so stage estimates are coarser, while snoring is something only this class of device can measure.
2
Installation
Slide it under the mattress at chest level on your side, plug in, connect to Wi-Fi. Withings excludes waterbeds and air mattresses. After that, nothing.
3
Power and connectivity
Mains via a USB adapter and a Wi-Fi connection, both required. A bed away from a socket or with weak Wi-Fi is a practical blocker.
4
Two in a bed
One mat, one side. A partner who spreads across the bed will add movement and heartbeat to your data. A second mat solves the coverage, not the overlap.
5
Interpretation
Sleep duration, timing, cycles, heart rate and snoring duration. As with all consumer devices, trends are the value and nightly stage minutes are the least reliable output.
6
Regional features
The EU "Sleep Analyzer" markets breathing-disturbance detection; the US "Sleep" sold under this ASIN may not offer the same. Check the app's feature list for your region before buying for that purpose, and remember none of it is a diagnosis.
Specifications
Withings Sleep mat specifications
Sensor
Pneumatic pressure sensor plus sound sensor (Withings documentation)
Tracks
Sleep duration and timing, sleep cycles, heart rate, snoring duration (Withings documentation); breathing-disturbance features vary by region
Power
5 V 1 A USB power adapter (Withings documentation)
Spring, foam, latex; not waterbeds or air mattresses (Withings)
Subscription
None
Specifications are taken from the manufacturer's listing and were checked on 14 Sep 2026. Variants and revisions differ — confirm on the listing before ordering.
Practical setup
Getting the most from the Withings Sleep mat
1
Place it at chest height on your side
Under the mattress, not under the sheet. Centre it where your torso lies.
2
Give it a week to calibrate
Withings's detection improves as it learns your bed; do not judge night one.
3
Read snoring duration as a conversation starter
If it is high and you wake unrefreshed, that is a reason to see a clinician — not a diagnosis.
4
Pair it with a fixed wake time
The most actionable output is timing; a consistent wake time is the change it can help you keep.
Trade-offs
What we like, and what could be better
+What we like
Nothing worn, nothing to charge, nothing to forget: it tracks every night you sleep in that bed
No subscription — the Withings app reports the data without a membership
Ballistocardiography from under the mattress gives heart rate and breathing rate without touching you
A microphone-based snoring measure, which wearables cannot provide
Set up once; it lives under the mattress and is plugged into the wall
−What could be better
It tracks one position in one bed: nights away, naps on the sofa and a partner rolling onto your side all confuse it
Needs a compatible mattress — Withings excludes waterbeds and air mattresses — and a mains socket by the bed
Sleep stages remain estimates, and a mat has less physiological signal than a device on the skin
Breathing-disturbance and apnoea-style features vary by region; the US "Sleep" and EU "Sleep Analyzer" differ
A Wi-Fi connection is required to set up and use it
Buyer fit
Who should consider the Withings Sleep mat — and who should skip it
Consider it if…
You have bought a wearable before and stopped wearing it.
You want to know whether you snore, and how much.
You refuse a monthly subscription for your own sleep data.
You sleep in the same bed nearly every night and have a socket beside it.
Skip it if…
You travel often — the mat stays home.
You sleep on an air mattress or a waterbed.
Your partner is restless and shares your side of the bed.
You want daytime metrics, temperature trends or a device you can take on a run.
Alternatives in the SleepOriginal catalogue
Withings Sleep mat vs the alternatives
Product
Best for
Standout
Main trade-off
Withings Sleep mat (this review)
One-bed sleepers who want data with nothing on the body and no membership.
Ballistocardiography and a snoring measure from under the mattress — set up once, never charged.
Why choose the Withings Sleep mat over the alternatives?
Choose the Withings Sleep when the wearable habit has failed you or never appealed. It gathers sleep timing, cycles, heart rate and snoring from under the mattress with no subscription and nothing to charge, and for a same-bed sleeper that makes it the most reliably continuous data source in our catalogue.
Choose a ring or band when you travel or want the day covered too, and be careful about breathing-related features: they differ between the US and EU models and are wellness information wherever you are. Our dimensions and power figures come from Withings's EU documentation because the US site refused our request.
An editorial judgement based on manufacturer documentation, published specifications and independent sources — not on hands-on testing. Read our review methodology.
Questions
Withings Sleep mat FAQ
How does the Withings Sleep mat track sleep without touching you?
A pneumatic sensor under the mattress picks up tiny pressure changes from your breathing, heartbeat and movement, and a microphone listens for snoring. Withings's software turns those signals into sleep cycles, heart rate and snoring duration. It is called ballistocardiography, and it works through spring, foam and latex mattresses.
Does the Withings Sleep require a subscription?
No. The data is reported in the free Withings app. That is the clearest practical difference from Oura and WHOOP.
Can it detect sleep apnoea?
Feature availability differs by region. The EU "Sleep Analyzer" markets breathing-disturbance detection with a medical classification; the US "Sleep" model our link points to has historically offered breathing-disturbance information as a wellness feature or not at all. Whatever your region, a mat is not a diagnostic device; loud snoring with pauses, gasping or heavy daytime sleepiness needs a clinical sleep assessment.
Does it work for two people in a bed?
One mat tracks one side. A second mat is needed for a partner, and a partner who moves onto your side will add noise to your data.
What mattresses is it compatible with?
Withings states it works with spring, foam and latex mattresses; waterbeds and air mattresses are not compatible.
Withings Sleep or Oura Ring?
The mat if you want to wear nothing and pay nothing monthly, and you sleep in one bed. The ring if you travel, want temperature and daytime data, or want the richer trend tools that come with Oura's membership.
SleepOriginal provides general educational information and is not a substitute for medical advice, diagnosis, or treatment. Persistent sleep difficulty, loud snoring or breathing pauses, severe daytime sleepiness, or symptoms affecting safety should be discussed with a qualified healthcare professional.
withings.com/us returned HTTP 403; specifications from Withings EU documentation.
Breathing-disturbance features differ by region and are not asserted for the US model.
Product facts come from manufacturer documentation; scientific context from the sources listed; everything else is SleepOriginal's editorial judgement and is labelled as such.
About SleepOriginal reviews. SleepOriginal is an independent sleep-education site that reviews sleep products from manufacturer documentation and named sources; it does not sell the products it reviews and gives no score to a product it has not used. All product reviews · About the author.
A product changes the room; a plan changes the habit. The Night, Noted — A guided 30-day journal for noticing your own sleep patterns: what helps, what gets in the way, and what is worth trying next. Observation rather than another programme to follow.
Relevant environmental tool for these SleepOriginal patterns (not a treatment for any of them):
The Unrefreshed MorningThe Variable Sleeper
non wearable trackingrecovery trackingno subscriptionconnectedmains powersnoring partner
Think the Withings Sleep mat is the right fit?
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