Does this give you any more analysis than wearing a HR Fitbit/activity tracker round your wrist - is this an alternative or in addition to?

Hi i use this in addition to my withings watch which has a basic sleep function. It gives you a measurement of the length and type of sleep - light, deep, REM sleep - it measure you heartbeat and average heartbeat and specifically it measure any episodes of sleep apnoea on a medically approved basis and gives you a rate per hour. as an over-weight middle-aged man with high blood pressure this has been really reassuring especially as I have been able to see my apnoea fall as I have lost weight thus helping me avoid the use of a night-time air-pressure device which is like trying to sleep in a snorkelling mask. It also "listens" for snoring and tells you how much time is involved. It doesn't measure "annoying breathing" (!) which can still cause your partner to want to "put a pillow over your face " - apparently.

If the phone is off during the night, will it automatically sync with the phone when switched on having already got out the bed

As long as your phone and Sleep Analyzer are connected to your Wi-Fi network after you wake up, your sleep data should sync automatically.

I am like the princess and the pea... Can you feel this at all under matteresses or toppers?

Yes, it is possible. Alternatively, if you feel the Sleep Analyzer when lying in your bed, you can place it between the mattress and bed frame. Please visit https://support.withings.com/hc/en-us/articles/360006502278-Sleep-Sleep-Analyzer-EU-ROW-Bed-and-Mattress-Compatibility which explains more about bed and mattress compatibility.

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WITHINGS Sleep Analyzer, Clinically Validated Sleep Apnea Device and Under-Mattress Sleep Tracker, Monitoring Device, Wifi & Bluetooth, Compatible with Apple & Google Health

Product ID: 182947697

Details

Battery description
Lithium-Ion
Brand
Withings
Colour
Grey
Compatible devices
sleep analyzer
Item weight
0.27 Kilograms
Material
Plastic

📶Wi-Fi & Bluetooth seamless sync

🛌Lab-grade sleep cycle analysis

❤️Continuous heart rate monitoring

₨106584

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Sold byAmazon Sri LankaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🌙 Sleep smarter, live better—your personal sleep lab under the mattress.

COMPREHENSIVE SLEEP METRICS - Deep, light, REM cycles plus snore detection for a 360° sleep health snapshot.
PRIVACY FIRST SNORE ANALYSIS - Audio processed locally—your data stays yours, no recordings, no compromises.
SEAMLESS ECOSYSTEM INTEGRATION - Syncs wirelessly with Apple & Google Health and Withings devices for holistic wellness tracking.
EFFORTLESS UNDER MATTRESS SETUP - No wearables, just place and track—sleep tech that blends into your routine.
CLINICALLY VALIDATED SLEEP APNEA DETECTION - Medical-grade insights from the comfort of home, bridging the gap to clinical labs.

The Withings Sleep Analyzer is a clinically validated, non-invasive under-mattress device that delivers lab-precise sleep cycle analysis, sleep apnea detection, snore tracking, and continuous heart rate monitoring. Compatible with iOS and Android, it wirelessly syncs data to the Health Mate app, empowering health-conscious professionals to optimize their sleep quality with privacy-first technology.

Specifications

ASIN	B084HS3HRD
ASIN	B084HS3HRD
Batteries	4 AAA batteries required.
Battery Description	Lithium-Ion
Best Sellers Rank	16,271 in Health & Personal Care ( See Top 100 in Health & Personal Care ) 113 in Sleep Masks
Brand Name	Withings
Colour	Grey
Compatible Devices	sleep analyzer
Country Of Origin	China
Country of origin	China
Customer Reviews	3.9 3.9 out of 5 stars (2,310)
Customer reviews	3.9 3.9 out of 5 stars (2,310)
Display Size	0.96 Inches
Global Trade Identification Number	03700546706516
Guaranteed software updates until	unknown
Is discontinued by manufacturer	No
Item Dimensions L x W x H	19L x 0.5W x 62.2H centimetres
Item Type Name	Withings Sleep Analyzer
Item Weight	0.27 Kilograms
Item model number	3700546706516
Manufacturer	Withings
Manufacturer	Withings
Manufacturer Part Number	3700546706516
Material Type	Plastic
Model Number	3700546706516
Number of Items	1
Number of Packs	1
Product Dimensions	19 x 0.5 x 62.2 cm; 270 g
Sensor Type	Auditory
Size	Pack of 1
Team Name	Withings
Unit Count	1.0 count

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