Withings

Withings Sleep Mat

The Withings Sleep Mat is an under-mattress sensor that tracks sleep cycles, heart rate, and snoring without requiring the user to wear anything.

### Overview

The Withings Sleep Mat is a discreet under-mattress pad that tracks your sleep without ever touching your body — you set it up once and forget it's there. It uses a pneumatic sensor to measure heart rate, respiratory rate, and movement through the mattress via ballistography, plus a sound sensor to identify snoring and breathing disturbances. Priced around $169, it offers thorough sleep metrics, accurate sleep scores, and breathing disturbance detection.

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### Pros

- **Truly zero-effort tracking:** After a one-time calibration, the mat records your sleep patterns each night with no further input — no charging, no remembering to wear anything, no nightly setup ritual. - **Clinically-grounded accuracy:** A 2024 study found the mat could identify overall sleep time and deep and REM sleep stages with high accuracy, with error rates comparable to Fitbit devices and the Oura Ring. - **Shareable health data:** The Health Mate app can generate both a sleep diary and health report that you can share with your doctor, making it genuinely useful if you're investigating a potential sleep disorder rather than just satisfying curiosity. - **Smart home integration:** The mat is compatible with IFTTT, enabling dozens of home automation applets — for example, automatically turning off bedroom lights when you get into bed, or adjusting your thermostat to a specific temperature while you sleep.

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### Cons

- **Requires a permanent power outlet:** The mat contains no battery, which means you'll need an electrical outlet near your bed to keep it plugged in overnight — a real constraint in some bedroom layouts and a dealbreaker for travel use. - **Not ideal for slatted bed frames:** It works best with a solid bed frame; if you have a slatted frame, you'll need to place the mat on something sturdy on top of the slats, adding setup complexity. - **Sleep coaching is basic:** Withings' sleep tips are more generalized compared with wearable trackers that use AI to assess your sleep and offer personalized recommendations. - **Optional subscription adds up:** A Withings+ subscription costs $9.95/month or $99.50/year and unlocks features like an ECG-powered cardiologist review and AI-driven insights — though if you're simply looking for reliable sleep tracking, there's no need to pay the extra fee.

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### Who It's For

This is a strong option for anyone who wants to track sleep and health data each night but doesn't want to wear a sleep tracker. It suits people who sleep restlessly, snore, or have been told they may have breathing issues at night and want data to bring to a doctor's appointment. It's also a smart pick for users who already track activity elsewhere and only want better sleep data, or who simply cannot tolerate wearing a tracker to bed.

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### Not Right For

Frequent travelers or anyone without a dedicated bedside outlet — the mat's under-mattress, always-plugged-in design makes it a home-only device with no portability whatsoever.

Seen at 2 retailers at $199.95 as of 2026-06-25. Prices change — check the retailer for the current price.

Passive, wearable-free sleep tracking that quietly sits under your mattress and gets out of the way.