SLEEP TRACKERS·WITHINGS
Withings Sleep Analyzer (Under-Mattress Pad)
4 · 9,200 reviews
Editor score8.3/10
Best for: No-wearable tracking, snore + apnea signals
Lowest price we found
$199.95
At Amazon · checked 2026-07-04
Buy at Amazon · $199.95 ↗Updated 2026-07-04
Form
Under-mattress pad
Wear
Nothing on body
Tracks
Stages, HR, snoring, breathing
The wear-nothing tracker — a pad under your mattress that tracks sleep stages, snoring and apnea signs with medical-grade heritage.
For people who refuse to wear anything to bed, the Sleep Analyzer is the answer: a thin pneumatic strip slides under the mattress and tracks sleep cycles, heart rate, snoring and breathing-disturbance patterns automatically, every night, forever. Withings is a medical-device company (its analyzer is CE-marked for apnea detection in Europe), and there's no subscription. It only tracks one side of the bed and can't move with you.
Price across 3 retailers
Prices checked 2026-07-04amazon
AmazonBest price✓ Fast delivery · easy returns
Under-mattress pad
$199.95
2026-07-04
Prices shown were last checked on 2026-07-04and can change at any time — the price on the retailer's site at checkout is the one that applies. As an Amazon Associate and affiliate we may earn a commission on purchases made through these links, at no extra cost to you.
How our prices work
We show the lowest price we found at our last check (2026-07-04) and the manufacturer's list price for comparison. Retail prices — Amazon's especially — move constantly, so treat these as a guide: the price shown on the retailer's own page at checkout is the one that applies. Tap through to see each retailer's current price.
Should you buy it?
What we like
- Track sleep wearing nothing
- Best-in-class snore + breathing detection
- No subscription, no charging ever
- Medical-device brand pedigree
What to know before buying
- Tracks one side of the bed only
- Can't travel with you
- No daytime/activity data
At a glance
FormUnder-mattress pad
WearNothing on body
TracksStages, HR, snoring, breathing
ApneaCE-marked detection (EU)
SubscriptionNone
SetupOne-time under mattress
CoverageOne sleeper/side
AppHealth Mate
Best forZero-wearable tracking
How it scores
How our 8.3/10 breaks down — rated on the dimensions that matter most for sleep trackers, from hands-on testing and verified specs, not the marketing.
Accuracy
8/10
Battery life
10/10
App & insights
7/10
Comfort
10/10
Value
8/10
Compare with alternatives
Quick verdicts for the sleep trackers most often considered alongside the Withings Sleep Analyzer (Under-Mattress Pad).
VS·HEAD-TO-HEAD
Withings Sleep Analyzer (Under-Mattress Pad) vs Oura Ring 4
The most comfortable passive sleep tracker on the market — if you can stomach the $5.99/mo subscription.
→ Passive trackers, women's health tracking, athletes wanting recovery data
VS·HEAD-TO-HEAD
Withings Sleep Analyzer (Under-Mattress Pad) vs RingConn Gen 2 Smart Ring
The no-subscription Oura rival — sleep-apnea alerts, 12-day battery and a charging case, with zero monthly fee.
→ Oura features without the monthly fee, long battery
VS·HEAD-TO-HEAD
Withings Sleep Analyzer (Under-Mattress Pad) vs Apple Watch Series 10
The best full smartwatch for iPhone users — sleep tracking is solid, but 18-hour battery means you charge every day.
→ iPhone users, smartwatch buyers, sleep apnea concern
Decision support · what no other comparison site has
Take the quiz · 60 secNot sure which one is right for you?
Our 60-second sleep score quiz asks 8 questions and recommends the right sleep gear for your goals. Built by sleep engineers. Free, no signup.
Frequently asked questions
How can a pad track sleep?
Pneumatic sensors read micro-movements, heartbeat and breathing through the mattress — no contact needed. Accuracy rivals wrist wearables for staging and beats them for snore/breathing detection.
Does it detect sleep apnea?
It flags breathing-disturbance patterns and is CE-marked for apnea detection in Europe (not FDA-cleared in the US). A strong screening signal, not a diagnosis.
Two people in the bed?
It tracks the side it's under — buy two for a couple, or place under the sleeper who wants data.
Subscription?
None — all metrics free in the Health Mate app, unusual and welcome.
Affiliate disclosure: SleepyHero earns a small commission when you buy through these links. It doesn't cost you extra. Reviews and rankings are editorial — we don't accept payment for placement.