I really want to like this product, it is simple to set up, the initial sync with the phone and app works the first time, the software updates are trouble-free, but initially, the sleep tracking failed. I had it for a week and it successfully tracked a full night’s sleep only twice and failed to track any sleep once. It most often tracked about 3 hours of sleep. I suspect that the device is also timing out, and failing to recognize that a trip to the bathroom or to get a glass of water is not the end of a night’s sleep and is failing to link the remainder of the night or tossing out the initial period and crediting the second and longer period.

Edited 5/23/2018

Product support suggested a lower and more centered position. This did not resolve the issue until I reset the pad and recalibrated. The pad is now positioned about sternum level and seven inches from the side of the bed. (queen size bed occupied by two, so centering is not an option) It now appears to be starting and stopping with my observed sleep periods. If you are diligent you can get the pad to record correctly. Most likely you will need to position the pad lower than implied in the instructions and six to ten inches in from the edge of the bed.

Edited 10/6/2018

Five months later and I still really like the pad. Consistent tracking every night, and periods out of bed long enough to make a cup of chamomile tea are included in the same night's sleep period.

Edited 8/5/2019

We added a second pad for the opposite side of the bed. Both pads record distinct sleep patterns for both occupants of the bed. Obviously, I have remained happy with the performance.

I purchased this sleep mat first week July 2023. It has been under the bed in continuous use for very nearly 24 months. I also have a Withings electronic scale which is another very helpful home health tool. I also used a SamsungWatch Pro as a part of an integrated home health monitoring solution. Note that Withings also produce a very good health watch (Scan Watch) which is well regarded. The correlation between the Samsung smart watch and the sleep mat is consistent in trend, but not absolute measurement. Also, be aware that sleep measurement is actually quite difficult, and to expect enormous accuracy from any of these devices is a bit unrealistic. What it does do, and both solutions do quite well is track your total estimated length of sleep. Thus, the measurements are in a sense relative to the measurement system used, in this case the Withings sleep mat. The Withings sleep mat however, has the advantage of a more comprehensive set of vital measures. These taken together with the sleep metrics can be very helpful in understanding your body's sleep dynamics, daily variance and rhythms.

The latest version of the software, which is perhaps the most significant release in 2 years really upped the Withings sleep mat game. The results are night and day (pardon the pun) different. As such, I would recommend not considering reviews over 3-4 months old as these will likely be with an older software version. The new software tracks the same things as before, but now includes things like heart rate variance, motion and enhanced breathing disturbance. As such, it now presents a much more comprehensive view of your sleep pattern as it relates both to several vital measures and the more fundamental sleep/activity times. This is actually very helpful as it tends to give you a better perspective of the overall sleep pattern.

Now results are always difficult to assess with a product like this. So first. The product. It has worked flawlessly for nearly 24 months without issue. So top marks for reliability. The software has been upgraded and is substantially improved over the 2023 version. So top marks for continued product development and enhancement. Noting that Withings does not charge any fees for the software use or upgrade. Top marks.

The personal results are highly dependent on whether you choose to use this product as feedback not on your sleep - that is somewhat uncontrollable - but rather your sleep habits. If you take heed of the very useful feedback and hints, you can start to make small adjustments over time that - like any training - incrementally improve your sleep behaviors. Example, one of the most significant factors is the time you turn-in, and the time you get up. Minimizing variance here will result in improvements to your score. When I started using the sleep mat I was achieving routinely low 70's. After 20+ months I now regularly hit mid-80's and low 70's represent my bad days. In fact this year I have started to be able to hit high 90's with a couple of notable 100's. The impact of this is more energy, better mental acuity/clear thinking and significantly less fatigue. Also note that when your score drops something is going on. Perhaps you have an early flight, new medication, or simply did not take the necessary steps to prepare for bed the night before. A quick check on your phone and you can quickly put 2+2 together and take action - if needed. After all life happens., and thats the thing be aware that the score is not a critique on you, but rather a guide to help you improve it. Sleep is fundamental to well being, so if you have an illness the score will likely drop (unless there is an impacted sleep element in the medication.) Thats okay, because you should realize you may need more rest, and perhaps take a little time out of your schedule to make up for the loss. If you have a smart watch it is easy to cross-correlate measurements and get a sort of digital second opinion. Rarely have I seen complete 180 between results - unless for example I am not wearing said watch. In the end you will get out of this product what you put in. If you have no intent to make a change, and it is idle interest, then a smart watch may suffice. However, if you want to really start modifying your behavior and are looking for coaching and guidance this product is for you. No product can guarantee any kind of health benefit as there are too many personal variables beyond its control or frankly sometimes yours. So this product is highly recommended to anyone that needs to monitor their sleep behavior, and body vitals with an intent to take personal action on the results. A restful sleep is possible, it may take longer than you expect. But it really is possible.

Finally, the real question does this product represent value for money or is it simply a nice to have. The way I would rationalize that is what is a more energized, less fatigued self worth to you? Or put another way, let's say you get 1-3 hours more useful, more enjoyable time per day that seems a huge upside relative to the modest investment made in this product. In two years at 1 hour a day more rested (say) that represents 8.7 weeks at 12 hours a day over two years for an original investment of $120. So on that basis, for this customer, this product represents excellent value for money. But thats a personal opinion.

This is completely useless when it comes to tracking your sleep to find any problems which you may have to correct. I say this because most of the data is made up out of thin air. How can I say this you may ask. Well, I use two other sleep trackers. A Wellue wrist sleep O2/heart rate monitor which is dead on accurate. I know this because I took it to the doctor's office with me last time and wore it while they took my vitals and the readings were identical to the doctors machine. I also use the Snorelab app on my phone which records all my snoring and interruptions. This thing didn't match what I was seeing on those two other monitors at all.

Here's a typical example of what this thing recorded for me last night.

First, the main data area shows your Awake, Rem, Light, and Deep sleep times. There are two problems with this "data". First, only a Polysomnograph can tell you this as it connects electrodes to your head to measure brain activity. Last I checked this thing didn't have electrodes to connect to my head, so this "data" is being completely made up using whatever formula they have set in the app. Lastly, the data shown is completely wrong. I was awake most of the night last night, I have really bad insomnia, the reason I know I was awake is that every half hour I'll say the time out loud so that Snorelab can record it and I can go back and listen to it. Last night I didn't fall asleep until a little after 4am. Yet this this says I was asleep within 10 minutes and that I was asleep all night with no interruptions for 8 hours, even though I got up once and went to the bathroom.

Second, the snoring sensor on this thing doesn't work. my Snorelab app says I snored for 2 hours and 9 minutes and I can listen to myself snoring as well as rattling off the time every half hour until 4am. Yet this thig says I didn't snore at all, zero, zilch, zippo. How can I believe that when I can hear myself snoring for over 2 hours in the Snorelab app?

Thirdly, there's an area for "Breathing disturbances" which is completely useless as it only says "Few". What the heck is "Few", 1, 3, 5, 10? It would be nice if they could tell you how many and at what time but I know why they don't. Here to the data is made up. I got "Few" last night but my Wellue says I had none as it would show an O2 drop if your breathing was interrupted. I believe the Wellue, as I have mentioned it's dead on and lets you know when you move also.

The last part is the heart rate area. This thing consistently measures a heart rate that's about 5bpm higher than my dead on Wellue monitor, but at least it sort of works unlike all the other things its supposed to measure.

Another bad thig with this device is that you are required to have a wifi connection as it sends the data to their servers and then to your phone. This is completely needless, why can't I just have the data on my phone? That's what my Wellue monitor and Snorelab app do. They send straight to my phone via Bluetooth, no internet required. Here to I know why they do this, they collect your data. That's why the app needs the following permissions:

This app has access to:

Device ID & call information

read phone status and identity

Camera

take pictures and videos

SMS

receive text messages (SMS)

Identity

find accounts on the device

Contacts

read your contacts

find accounts on the device

Phone

read call log

read phone status and identity

Wi-Fi connection information

view Wi-Fi connections

Calendar

read calendar events plus confidential information

And that's just some of them. Why on earth would they need my call logs, contacts, and calendar events to track my sleep?

Needless to say, this POS is going back for a refund.

P.S.

For all you people that give this a glowing review here's a little challenge for you. Go lay down for 2 hours without sleeping then check to see how long you were sleeping. I actually did that once in the middle of the day and it logged it as a nap. apparently I fell asleep in 0 minutes and slept for two hours. When in fact I was awake the whole time watching TV.

I've been using the Withings Sleep Tracking Pad for a couple of months now and overall, I think it's a really solid product. The setup was easy, all I had to do was slide it under my mattress, add it to the Withings iPhone app, and forget it's there. It tracks all the important metrics, heart rate, sleep cycles, and snoring without requiring me to wear anything, which is exactly what I was looking for.

I removed one star from my review because the US version has less functionality compared to the European version. The EU version, called the "Sleep Analyzer," has sleep apnea detection but the US version does not, as it is still pending regulatory approval. It's not a deal-breaker, but I hope the missing feature will be available here at some point, especially considering the price point.

Still, the data it provides is robust and has helped me identify trends in my sleep patterns. It syncs reliably over Wi-Fi, and the Withings app gives you a clear breakdown every morning. I also use a Withings smart scale and blood pressure monitor, and together they make a very comprehensive and seamless health tracking system. If you're already in the Withings ecosystem, this fits perfectly. It's not perfect, but it's close and for anyone who wants to better understand their sleep without wearing something on their wrist, it's hard to beat.

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.

I've been getting into tracking my and my families health as we get older. Devices from Withings/Nokia all seem to feed right into Apple Health so I've been one by one picking them up. They are all Wifi + Bluetooth enabled making for an easy setup and easy use. Easier, more reliable, and often cheaper than Fitbit devices I've used.

I typically sleep hot, light, and tend to thrash in my sleep. While I am not fully awake during these times I can tell I am not sleeping great. Having data from this device is helpful to cross reference with other happenings of the day. Did I exercise, when did I actually go to sleep, what and when did I eat, etc. I hope to use this device for data collection to create more full picture to help diagnose and maybe finally, for once, get a decent restful sleep.

This unit only works for one person, so you will need two if you have more than one person in bed. I suspect kids and animals might mess this up too? Not entirely sure but the data has been helpful for me thus far. The device itself is also super clean, fitting nicely into your home with a soft finish, USB power, and a neutral heather gray color. That said I've wired it so you can see anything, but I can appreciate a good looking device.

Tried wearables with limited success. Gave up on them and tried this sub-mattress device. Great decision!

Once I properly placed and calibrated this pad, I began getting very useful sleep data that

1. Allowed me to develop a consistent understanding of trend and pattern data in my sleep cycles

2. Accurately tracked the number of times I woke up, length of time to fall back to sleep, if I got out of bed (always to use the bathroom in my case) and how often I get up, when I sleep deeply (slow wave) during my sleep cycles.

3. Understand which meds, products and sleep hygiene steps impact sleep positively, negatively or not at all.

I'm using the Withings pad to understand how supplements affect my sleep based on amount and time of evening they're taken.

This pad, at least in my case, provides just enough accurate and detailed information on my sleep cycles that I can test making adjustments in my life to determine if they're helping to improve my sleep. My hopes are high that this product will help me to identify lifestyle and supplement changes that result in better sleep and hopefully healthier wellness as a result.

So far, I highly recommend it.

5-MONTHS REVIEW:

Been using the Withings sleep tracker for 5-months, and I'm more impressed than I originally was. I've been able to measure the impact of various sleep hygiene activities and supplements on my sleep score with great effect, allowing me to understand what works best for me, individually. While I've made great strides in getting better sleep, its still a work-in-progress as its only been 5-months with my Withings.

I really am confident that the sleep data is accurate most of the time as it often matches my anecdotal experience after waking. I've found it to be of lesser accuracy only about 10% of the time, which is exceptional compared to my experience with wear-ables.

I can't say enough how much I love the Withings Sleep product, and I've recommended it to friends. Honestly, the Withings pad is a bargain at under $100 US, as wear-ables costing 3X as much are far less useful for measuring and adjusting efforts for better sleep. Knowing what I know now, I'd pay much more for this product simply because the value is there in every way.

I came across several questions on here about using this for tracking sleep for a toddler with varying answers but nothing from someone who actually tried it. We're using this for tracking a ~30 lb. 18 month old and it sort of works but only in the broadest sense. I know that it is not what this device is intended for so my rating is based entirely up on the interaction with the sleep data and not on the accuracy.

For the sleep tracking, it seems that he's heavy enough to register on the sensor but not is all positions. I think as he moves around through the night, he hits some spots where it thinks he's out of bed. I've tried positions the tracking pad perpendicular to the mattress, at an angle and along the mattress. In perpendicular, which is how you'd set it up for an adult, it seems to track the heart rate the best (the graph is still all over the board but the average it generated seemed about right) but the in bed tracking is the worst. Along the bed it the exact opposite where the heart rate is worse but the in bed tracking is better. As you'd expect, the angled position splits the difference.

For data tracking, its almost as if they designed it to be specifically lacking. My point of comparison is an Owlet tracking sock that my son is outgrowing. I know that a wearable is going to be way way better for tracking than any bed sensor but I really just wanted something that would let me know how he was sleeping. Mostly, I just want to know if he's going to be cranky from lack of sleep and might need a longer nap. There are a lot of things this app should be able to do easily but just can't:

-Uses their general health app and doesn't give you any way to use it only for sleep tracking and not dealing with digging past all the other health stuff

-Can send IFTTT triggers for being in bed or out of bed but won't display this information in the app

-Can export data through IFTTT but won't let you through the app

-Could easily display real time data but doesn't

-Doesn't sync data consistently and doesn't allow you to manually initiate a sync

-Does track naps but in a separate section with a separate graph

-Doesn't give a continuous graph and instead sorts by 'last night' which gets confusing in terms of know what day you're looking at especially given the weird/random syncing

-Doesn't give any option to zoom in on graphs, you just have to keep taping and hope it registers at the spot you're trying to see a time for.

In the end, I've decided to keep it, hoping that it will track better as he gets bigger and at least give me some information about him getting up at night when he's older. The setup for this was very straightforward, it seems like a quality device and some of the overall data for the night is organized very nicely but the lack of basic overall data handling in the app is incredibly frustrating. A lot of these issues with a lack of real time data and status would also apply to caregivers. I'm hoping they'll address some of these things with future updates because my first experience with the device was incredibly disappointing for such an expensive device and I almost just returned it immediately.

Update: removing anither star because it is pretty much entirely dead at this point after around 4 years. It really only worked reliably for about two years and has been getting worse for the last two. This time even after a full factory reset it won't track any sleep data. It still sometimes reports in/out of bed to my smart home but there is no data in the app for that time. I did fully deflate as part of the last reset so i know the valve and pump still work, just no data. I guess if you have the money to burn on replacements, you might still find this worthwhile but for the rest of us I don't think its at all worth the cost and hassle.

📦 Packaging :

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.

I’ve had various sleep trackers, from Sense which required a simple sensor on the pillow but sadly went out of business so their cloud stopped working, and Beddit (now owned by Apple) which is actually probably better than this but there are some caveats (it requires Bluetooth and the Beddit App open). Nokia’s efforts don’t require anything complex, the sensor goes under the mattress - I have a Simba and it’s perfect. You then get into bed and that’s it, just forget about it. It tracks heart rate and sleep quality through the night and simply uses WiFi to send this to the cloud, finally being displayed in the Nokia Health app. If you have an iPhone it can then send the sleep data (but not heart rate data) to Apple Health. Your data belongs to you, and this is important. It’s not locked away like Fitbit does.

In terms of accuracy, I find it really quite good. It senses bed time perfectly, and it can tell the difference between sitting on the bed and getting into bed. Sleep detection seems amazing, it’s not always sleep time when getting into bed, and the app reports time to fall asleep. Sleep duration, and depth are tracked also. Of course!

Detection of waking up in the morning is good, but it can be a bit hit and miss with getting up time. I do like to laze in bed some days, which probably confuses it. It’s not quite as good as time to sleep detection, but it’s still great - but again there is nothing to do. Just get up and it’s done. It cannot be more simple.

All in all, this is highly recommended. It’s excellent value for money.

I bought this immediately after finding it. The idea of getting my sleep tracked without having to wear something was exactly what I was looking for. I watched a video review prior to buying which helped to anticipate how accurate the measurements would be. Overall, it gets my sleep patterns pretty right on, and I sleep with a partner in the bed as well as a dog sometimes.

Very impressed that they can detect sleep start and end, heart rate, and sleep depth through maybe 10" of mattress.

Excelente medidor de la calidad del sueño. Recomiendo ampliamente este producto y revisar los demás que ofrece Nokia/Withings. Yo tengo la báscula, el medidor de presión, el termómetro y este dispositivo de medición del sueño y puedo contar que son unos excelentes dispositivos.

My first one lasted five years. Let's hope I get the same or more out of this one.