Ok, I do not ordinarily write reviews unless I am very impressed and this sleeping mat really impressed me. I have tried a variety of sleeping mats/sensors in the past and the single biggest problem with them all (other than this one) is that they require you to use your phone to record the sleeping data. With other mats, you need to remember to open an app on the phone and you need to store all the data on your phone, which gets very annoying after a short while. Not with this mat, the sleeping mat communicates with Withings directly over wifi and all your sleeping data is stored on their website. Your phone is just used to view the data whenever you want, you can delete the withing app from your phone and it will not erase the data. The other important thing about a sleeping sensor is the accuracy, a sleeping mat/sensor is no good if it is not accurate, and this one is meeting my accuracy standards. You do need to be careful where to put the sensor (they say under the sternum) but once you do that, then you don't need to worry about placement ever again, or even need to think about the sensor ever again. It just records your sleep every day without you ever having to think about it. This point is not to be under estimated, I have 10 years of daily weight data stored on the Withings website, because I use their weighing scale. And no, I am not giving them 5 stars just because I own their weighing scale, I would simply not bother writing a review if I was not truly impressed with the product. I am going to come back and update this review after 1 year, the true value of a good sleeping sensor is in being able to consistently produce a good measurement every day.
Update after 1 month:
1. Robust: I have used it for a little bit less than 1 month now, and I have a reading from every day. This is a first for me, my previous sleeping sensors never made it so far.
2. Accuracy: Accuracy is not super good but not super bad either. If you lie still in bed and do not move, this sensor will put you down as "REM", and the other deeper sleep settings can be fooled too. I think i have to leave the bed or sit upright for it to think that i am awake, otherwise it thinks that i am asleep. If the sensor is able to measure my heartrate and i don't move much, it has me down as asleep. Not complaining to be honest, I am not sure how much better someone else can do either.
3. Speedy reading: Typically i get the results as soon as i get out of bed, within 5 mins. On a few occasions, it has take longer. Sometimes as long as 6 hours. I think the sensor tries to connect to the website, if it is not able to connect, waits for a few hours before retrying. Not sure exactly what happens in the few instances. But I have always managed to finally get a reading from the previous night, even with those delayed instances. I see a lot of negative reviews and I feel that this could be a cause of concern. When you don't see the results right away, you get nervous that the sensor could be broken.
4. Five Stars: Yes, I still give this product 5 stars despite everything. Competitors take note, this is the first time that a sleeping sensor has been able to track my sleep for as long as a month, and the data is stored safely in Withings website. I don't think any other sleeping sensor competitor can say they do as good a job, including the mighty Apple. I am afraid that making a good sleeping sensor is so hard, that people might simply think it is not worth the effort.
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Product Description
Track sleep. Enhance bedtime. Wake up a better you
Featuring a simple one-time setup under the mattress, Withings Sleep helps improve sleep quality by offering advanced sleep cycle analysis (deep, light & REM), heart rate tracking, and snore detection. Delivers a daily Sleep Score. You can also create a better sleep environment by taking advantage of a range of smart home capabilities that Withings Sleep can support.
WAKE TO IMMEDIATE IN-APP RESULTS
Find your results automatically in the free Health Mate app (iOS & Android) via automatic Wi-Fi sync. It provides valuable data that can be used during a doctor visit or can be easily shared with your healthcare provider via PDF.
EASY SETUP
Easy one-time setup under the mattress makes Sleep fit effortlessly into your life. Withings Sleep is compatible with most mattresses (spring, latex, foam, and memory foam from 10 to 45 cm thick).
ENHANCED SLEEP ENVIRONMENT
Create smart home automation scenarios just by getting in and out of bed. Via IFTTT integration, Sleep can act as a switch to control lights, the thermostat and more.
WORKS WITH ALEXA
Health Mate users can add this Alexa Skill to get motivated or simply check in with progress. Just say, “Alexa, ask Withings,” and discover sleep trends by day, week, or year
so far so good - seems to work okay
I was pleasantly surprised to discover that the Withings Health Mate app DOES in fact display your Deep Sleep as not only hrs/min, but also % of the night. Ditto the REM sleep & light sleep. At least it does as of Aug 2023 (see pictures/screen-shots in my review here). I had an impossible time trying to confirm this ahead of time, before I made my purchase. I am docking 1 star for the accuracy, as I suspect these #'s I'm may or may not even be all that precise. Last night for instance I had a horrible night's sleep: tossing and turning, constantly waking up during the night, very shallow type sleep that felt like I was half-awake the whole time. The Withings Health Mate app actually displayed a whopping 30% Deep Sleep the next morning, which there's no way that's even close. Felt more like about 3% of my night was Deep Sleep instead.
Top reviews from the United States
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- Reviewed in the United States on June 11, 2021Style: SingleVerified Purchase
UPDATE: it stopped working after the 6th day
Overall I’m glad I have it, but it’s still not perfect/the last sleep app/device you’ll need.
Pros:
- no need to wear Apple Watch or the like to bed (with the screen randomly lighting up as you’re turning around)
- nothing to charge
- captures nap (some apps only track night sleep)
- app is easy to use, lovely user interface (much better than Apple Health), tracks other vitals imported from Apple Watch/Health
- love that I finally know whether I snore or not
Cons:
- biggest annoyance: it consistently tracks less sleep than I actually sleep. I usually wake up around 6 to go to the bathroom and come back to bed right after. This should be tracked like any interruption (I often do this around 2 or 3 am too and Withings tracks that interruption correctly). Why it can’t do that at 6am is beyond me. Consequently it also always thinks I never stay in bed after waking up, which couldn’t be further from the truth
- no option to set a wake-up alarm based on my sleep cycle stage
- second largest annoyance: it declares that my fitness level is low based on a tracked walk I did with my friend’s dog. This is very frustrating since I actually do resistance training 4-5 days a week and I’m very active the rest of the week. I’m currently purposely not doing any intense cardio work for a month, so it doesn’t rly know my fitness level. I find this super frustrating and mildly insulting.
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Top reviews from other countries
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LBRReviewed in France on August 4, 2019
Testé dans des conditions difficiles
Style: SingleVerified Purchase
📦 Packaging :LBRTesté dans des conditions difficiles
Reviewed in France on August 4, 2019
Le capteur est livré dans un packaging de qualité, très bien protégé. Le capteur est assez simple, légèrement plus épais, je dirais environ un centimètre d’épaisseur, du côté du câble USB. Le câble est tressé et semble solide. A noter que deux adaptateurs secteur sont fournis, une prise européenne et une prise anglaise.
⚙️ Installation :
L'installation est simple en quelques pas et nécessite un smartphone et la création d'un compte. Une calibration automatique du capteur est effectuée après la première connexion.
📊 En pratique :
J'ai installé le capteur directement sur des lattes (donc pas tout à fait à plat), en dessous d'un matelas de 30cm d'épaisseur. J'ai configuré l'IFTTT (très facile) avec mes ampoules connectées Yeelight, tout s'éteint quand je me couche et s'allume quand je me lève, c'est parfait !
Après plusieurs semaines d'utilisation, aucun problème. L'épaisseur du matelas ne pose pas de problème, pas plus que l'installation sur les lattes.
Le capteur perd une étoile sur une situation plutôt courante... Vous lisez ou regardez la télé au lit ? Pas de chance. Le capteur mettra toujours ça sur le compte "temps à vous endormir". Cette mesure ne sera donc jamais fiable, sauf si vraiment vous vous couchez directement pour dormir. Idem pour la mesure « levé en ». Je suis d’accord, le réveil n’est pas le moment pour vérifier ses mails. Mais je suis sûr de ne pas être le seul dans ce cas. Ce qui serait sympa serait de pouvoir sélectionner uniquement les paramètres que nous voudrions voir évalués.
✔️ Points positifs :
- Fonctionne bien même avec un matelas épais ou sur des lattes
- Discret
- Mise en œuvre facile
❌ Points négatifs :
- Interdit de lire au lit ! :-)
📝 En conclusion :
Malgré le fait qu’il n’est pas possible de détecter quand vous lisez (ou autre !) au lit, le capteur fonctionne bien malgré le fait qu’il ait été posé directement sur des lattes et sous un matelas d’une trentaine de centimètres d’épaisseur. L’application est bien détaillée et simple d’utilisation.
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HansReviewed in Germany on September 27, 2016
Wenn es funktioniert ist es prima...
Style: Bundle of 2Verified Purchase - Mr. Henry BlackmanReviewed in the United Kingdom on April 17, 2018
Excellent. Best tracker yet.
Style: SingleVerified Purchase - TReviewed in Singapore on March 10, 2022
Some anomalies in the data, but overall very impressed
Style: SingleVerified Purchase -
Ricardo GómezReviewed in Mexico on December 31, 2018
Excelente sensor
Style: SingleVerified Purchase
