← Wearable finder
Withings Sleep
Under-mattress sleep mat · $130, no subscription

Withings Sleep

Clinically validated sleep tracking, nothing to wear.

★★★★★3.8/ 5 Vora ratingHow we rated ↓
#2 battery
Best for

Cheap, validated sleep and apnea trends with zero effort

Watch out for

Sleep only; apnea (AHI) feature is EU-only

With Vora

Vora uses Withings sleep trends as one input into daily recovery.

How we rated the Withings Sleep
★★★★★3.8/ 5, Vora editorial rating

Our own assessment of a device we do not sell, weighted across six dimensions: accuracy 30 percent, coverage 20 percent, battery 15 percent, value 15 percent, comfort 10 percent, app and ecosystem 10 percent. Every score links to an independent 2024 to 2026 source.

Accuracy68

Excellent apnea screening and sleep/wake detection from a mattress sensor, but it overestimates total sleep and deep sleep and gives no true stage output, so it trails wearables on staging.

Against simultaneous polysomnography it hit AHI>=15 sensitivity 88.0% / specificity 88.6% (AUROC 0.926) and AHI>=30 86.0% / 91.2% (AUROC 0.954), but overestimated total sleep time by 25.8 minutes (7.0%) and does not provide sleep-stage analysis. JCSM 2021 PSG validation (n=118)

Coverage & features62

For a contactless bed sensor it covers the core sleep story (duration, rough stages, heart rate, snoring, breathing, apnea trends) but nothing daytime, and independent testing flags soft staging accuracy.

In a four-device field comparison the Withings recorded deep sleep at 26.5% (vs the 13-23% healthy range) and users rated it accurate on only 46% of nights, the lowest of the four trackers tested. Frontiers in Computer Science 2022 field study

Battery100

It plugs into the wall so it never needs charging and captures every night with zero battery management, the best possible outcome for this dimension.

The reviewer notes the mat has no battery and records sleep each night with no further input once set up, with the only power caveat being that it must stay plugged into a wall outlet. Sleep Foundation 2026 review

Comfort95

It is fully contactless under the mattress with nothing to wear, so it removes the observer effect of a watch or ring while you sleep.

The tester wrote that the complete lack of physical contact was something they really enjoyed, and the thin, lightweight mat did not make the mattress feel uneven. Sleep Foundation 2026 review

App & ecosystem65

The free Health Mate app is broad, integrating with Apple Health and 100-plus apps plus doctor sharing, but Withings support forums show recurring Apple Health sleep-sync remapping issues.

The Health Mate app integrates with Apple Health and over 100 other health-related apps and lets users share a sleep diary and health report directly with their doctor, all with no required subscription. Sleep Doctor 2026 review

Value85

A one-time price with no subscription undercuts most sleep wearables and delivers clinically validated apnea and sleep trends, though the typical street price runs above the lowest listed figure.

The Sleep Foundation lists the mat at $130 with no subscription required, framed as a lot of functionality for an affordable sticker price, though Withings MSRP and Amazon list it higher (about $165 to $200). Sleep Foundation 2026 review

Also reviewed by: Sleep Foundation (2026, expert tested), JCSM 2021 peer-reviewed PSG validation (n=118), Sleep Doctor (2026 review)

The Withings Sleep scorecard
Battery Life100#2Sleep70#14HRV45#21Recovery40#22
Build a stack around the Withings

It is pre-loaded below. Drag in a second device to see how the combined coverage changes.

Vora · Wearable finder29 devices · 17 signals

Build your stack. Vora runs it.

Drag wearables from the ring into the arena, or tap to add. Combine up to 8, each signal takes the strongest sensor you own, and Vora reconciles them into one plan.

Budget
ringOuraRing
watch-squareAppleWatch
bandWHOOPBand
bandFitbitBand
watch-roundGarminWatch
watch-roundSamsungWatch
bandFitbitBand
ringUltrahumanRing
patchDexcomCGM
watch-roundGoogleWatch
watch-roundCOROSWatch
podEight SleepSleep
strapPolarHR strap
ringSamsungRing
ringRingConnRing
ringCircularRing
ringAmazfitRing
watch-roundWithingsWatch
watch-roundSuuntoWatch
watch-roundPolarWatch
watch-roundAmazfitWatch
strapGarminHR strap
patchAbbottCGM
patchLevelsCGM
podWithingsSleep
scaleWithingsScale
scaleInBodyScale
scaleHumeScale
scaleGarminScale
Vora
podSleep Analyzer
19
Stack coverage / 100

A focused setup. Great at its specialty, lighter everywhere else.

Stack price~$130upfront, selected models
Score signals8/16
Gaps
VO2 Max, Running & GPS, Steps & Activity, Stress, Cycle Tracking, Recovery, HRV
  • A single device is simplest to live with. Vora squeezes the most out of whatever it captures.
Run this stack with Vora
FAQ
What is the Withings Sleep best for?
The Withings Sleep is a under-mattress sleep mat best for cheap, validated sleep and apnea trends with zero effort. In our scoring it is strongest at battery, sleep, HRV.
What are the downsides of the Withings Sleep?
The main trade-off: sleep only; apnea (ahi) feature is eu-only. That is exactly why many people pair it with a second device so each tracker does what it is best at.
Does Vora work with the Withings Sleep?
Vora uses Withings sleep trends as one input into daily recovery. You keep using Withings's own app to manage the device. Vora sits above it as the coaching layer that acts on the data.
Keep exploring
Best for VO2 maxBest for HRVBest for sleepBest for recoveryBest for runningBest for stepsBest for glucoseBest for stressBest for cycleBest for temperatureBest for AFib / ECGBest for battery
ringOura RingringUltrahuman Ring AIRringSamsung Galaxy RingringRingConnringCircular Ring 2ringAmazfit Helio Ringwatch-squareApple Watchwatch-roundGalaxy Watchwatch-roundGoogle Pixel Watchwatch-roundWithings ScanWatchwatch-roundGarminwatch-roundCOROSwatch-roundSuuntowatch-roundPolarwatch-roundAmazfitbandWHOOPbandFitbitbandFitbit AirstrapPolar H10strapGarmin HRMpatchDexcom (Stelo / G7)patchAbbott Lingo / LibrepatchLevelspodEight SleepscaleWithings Body ScanscaleInBodyscaleHume Body PodscaleGarmin Index S2

Keep your wearable. Add a coach that acts on the data.

Vora works with Oura, WHOOP, Garmin, Apple Health, Fitbit, Samsung Health, Eight Sleep, CGMs and hundreds more, turning whatever you wear into workouts, nutrition, recovery and a daily plan.

Download Vora