• Sleeping technology that doesn't require contact
  • A look at some illuminating sleep statistics
  • Environmental sensors for use in Sleep Coaching
  • Excellent and sophisticated alarm system


  • The monitoring of sleep is not done automatically.
  • There is not a speaker built in.


DESIGN 7.5/10

EASE OF USE 7.5/10



For one's own health and well-being, getting sufficient sleep each night is absolutely necessary. Its significance extends much further than simply making you feel better or getting rid of dark bags under the eyes. During sleep, your body is able to recoup from the events of the day, recharge its batteries, and get ready for the challenges of the following day. It is equally as crucial for your health as maintaining a healthy diet and getting regular exercise.

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The S+ by ResMed is the world's first non-contact sleep monitor, and it maintains track of critical sleep-related elements inside your environment, such as the temperature, the amount of light, and the volume of any loud sounds. These, in conjunction with the statistics on your sleep, are examined in order to provide you with individualized recommendations that are geared toward assisting you in obtaining a more restful night's sleep.

The most intriguing aspect of the device is that it makes use of radio waves to track your respiration and body movement. It works in a manner that is analogous to the echolocation mechanism that bats employ, and it does so without coming into contact with either you or the surface on which you sleep. This means that there are to be no wristbands or mattress strips used.

Is it possible for a contactless nightstand monitor to produce data on the quality of sleep? Will it in fact assist you in having a more restful night's sleep? Continue reading to discover.


The S+ comes in the form of a rectangular, brushed metal rim and a gleaming white pod which houses the brains of the unit. It is intended to be placed next to your bed and functions as a bedside alarm clock. It is not very handsome, but it is not offensive to the eye either, and it mixes in nicely with the surroundings thanks to its straightforward and unadorned design.

The magnetic clip is located on one side of the frame and allows the pod to be attached to it in a secure manner. The frame is 10.7 centimeters by 5.3 centimeters by 20.6 centimeters. This particular configuration is practical because it lifts the primary unit to a position where it is elevated above the top of the bedside table. If you have room to move around, you will find that it is simple to rotate the pod such that the radio wave technology is pointed in the direction of your chest.

The second possibility is to dispense with the frame altogether and just set the pod down on a level surface. I chose the first alternative, but I can see how the second one might be advantageous in some circumstances, such as when traveling, because it decreases the amount of storage space that is required for the unit.

Review of the Resmed S+, a device that watches how you sleep without physically intervening.

AD Resmed has been a player in the field of medical equipment for more than 25 years at this point. The level of expertise possessed by the organization is readily apparent. The sleep monitor, despite being on the lighter side, has a solid build quality and gives the impression of being a high-quality product, despite its reduced weight.

On the front of the pod is where you'll find the array of LED lights. The lights could be green, yellow, or red depending on the mode that S+ is currently operating in. After 15 seconds of beginning the sleep tracking process, the lights will begin to dim gradually until they are completely off.

The S+ runs in complete silence and does not come equipped with a speaker of its own. Having said that, you do have options that require audio, such as the Smart Alarm, Relax to Sleep, and Relax Daytime. These are all available to you. However, the sound will not come from the unit itself but rather from the smart device that comes with it and is used by the software that comes with it.

A contactless sleep tracker with a plethora of functions, the Resmed S+ is evaluated here.

The AD S+ system works by monitoring the motions you make while you are asleep. It accomplishes this by first sending out a brief pulse of radio waves operating at a frequency of 10.5 GHz, and then listening for the echo of the pulse it sent out. This mechanism was modeled from technologies discovered in nature. This is very similar to the echolocation method that bats employ when hunting insects, as was previously explained.

Because fabrics such as clothing and blankets are nearly transparent to radio waves operating at this frequency, the echo signal is generated almost entirely by reflection off of your body. Therefore, it continues to operate even when you are in bed with the covers over your head. You are nothing more than a puddle of liquid to S+; they see you as nothing more. In case you were curious, the radio frequency in question is less than one-tenth that of Bluetooth; hence, there is no reason for you to be concerned about any negative impacts. According to Resmed, the S+ satisfies all of the global safety regulations for electrical devices.

The pod not only has technology that tracks sleep, but it also contains environmental sensors that monitor the circumstances in your bedroom, such as the amount of light, the temperature, and the amount of background noise. After all, each of these aspects has the potential to have an effect on the caliber of your nocturnal rest.

To your great relief, this is not yet another device that will require you to charge on a consistent basis. In point of fact, the gizmo does not contain a battery; hence, it cannot operate unless it is connected to a power source via an electrical outlet. On the back of the pod, there is a standard micro-USB connector that, when plugged in, links to a dual USB socket. This allows you to charge both your phone and the pod at the same time.

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When you initially install S+, you will be prompted via the companion smartphone app to answer several questions that are part of the profile setup process. The contains information such as your weight, height, age, and gender, in addition to other thorough questions on your sleeping patterns, lifestyle, and other topics. You are free to ignore this, however the questionnaire should really be filled out if you have the time. Later on, the S+ will use the information to give you customized feedback based on your preferences.

The appliance is fashioned in such a way that it can be placed on your nightstand. It does this by monitoring the movement of your upper body while you are sleeping and reporting it to you in the morning. During the time that it is monitoring your sleep, the pod should be positioned such that it is facing your chest, that it is elevated above the level of the mattress, and that it is kept within a range of 3.9 feet (just over a meter). It goes without saying that you should make sure there are no obstructions between you and the S+ device.

Review of the Resmed S+, a device that watches how you sleep without physically intervening.

Because the S+ is in continuous communication with the app through Bluetooth, it is usually a good idea to plug your smart smartphone into an outlet. Even if tracking your sleep on your phone doesn't put a huge strain on the battery, if it dies in the middle of the night, you won't be able to access the data.

Putting the device in its desired location was a fairly simple process for me. The fact that the application displays readings in real time from the wireless bio-motion sensor when it has been activated is something that is helpful. This looks very much like what you might find on a machine at a hospital that monitors patients' heart rates. It was fascinating to watch the monitor pick up on the rising and falling of my chest in response to my inhalations and exhalations. On the chart, even the tiniest shifts in position, arm twitches, and shrugs registered as spikes or troughs.

It is important to note that the device can only be used to keep tabs on a single individual at a time. But, and this is where things get interesting, the S+ unit is able to tell the difference between two people sleeping in the same bed at the same time. Simply ensure that the device is positioned on the same side of the bed as the individual whose movement it is detecting. Another thing that needs to be considered is how well it achieves this. It is easy for me to conceive that it would be challenging to discern between two people who were sharing a bed with complete precision.

A contactless sleep tracker with a plethora of functions, the Resmed S+ is evaluated here.

The sensor will not, sadly, pick up on the fact that you are sleeping automatically. In the evening, you will need to manually initiate a sleep session through the smartphone app on either your Android or iOS device. It would have been amazing if the S+ could automatically recognise when someone has hopped into bed given how intelligent everything else is.

At the beginning of each session, you will be questioned about the amount of caffeine and alcoholic beverages you ingested that day, as well as your stress levels and the amount of time you spent exercising. It will take you less than fifteen seconds to respond to the questions, and it is well worth your time to do so because the information you provide will be used in the dashboard of the website to establish how your daily activities affect the quality of sleep you get at night.

S+ employs complex algorithms that are able to recognise the combination of breathing and body-movement signals in order to provide an accurate analysis of the user's total sleep condition. If you're always on the go, you'll have a much harder time falling asleep. On the other side, if you are in a very deep sleep, there won't be much movement and your breathing will be very regular. Makes perfect sense.

A contactless sleep tracker with a plethora of functions, the Resmed S+ is evaluated here.

When you wake up, your entire sleep history will be ready and waiting for you on the app on your smartphone. When you are ready to finish the session, all you need to do is tap the Stop Tracking button within the app. In the event that you fail to carry out this step, the S+ will continue operating for a total of 14 hours.

To begin, you will be provided with an overall sleep score, which is a number that may be used to identify at a glance how well you have performed. This is a number that takes into account several different aspects of your sleep and compares them to the known averages for your age and gender. Those users that fall below the average have an average sleep score that is lower than 75. Poor sleep is characterized as an average sleep score between 50-60. Very bad sleep is characterized as an average sleep score between 30-50.

If you tap on the score, you'll be sent to a pie chart that breaks out exactly what you did well and where you could improve. A perfect score of 100 requires adequate time spent sleeping, an adequate amount of deep and REM sleep, a minimal amount of time spent awake after falling asleep, a minimal amount of time spent awake before falling asleep, and ideal environmental circumstances in the bedroom. It is highly improbable that you will obtain a score of this level very frequently. In all of the weeks that I tested it, my highest score was only 90.

Both rapid eye movement sleep and deep sleep have their own unique benefits. The first should be used to refresh your mind, and the second should be used to restore your body. You will receive a score of 100% on both of those counts. In addition, the application will display the total number of times that you were awakened during the course of the night, in addition to providing a timeline of your sleep cycle that is segmented into Deep, Light, REM sleep, and wake time.

A contactless sleep tracker with a plethora of functions, the Resmed S+ is evaluated here.

The "history" tab displays all of your data from the beginning. On the other hand, I did not find anything that would calculate an overall average of my statistics over a period of time, such as for a specific week or month. Everything is shown in a view that is broken down by day. Despite this, the statistics are quite comprehensive and offer a very helpful summary of the amount of time you spend sleeping each night.

The fact that you have access to this kind of information is helpful, but the sleep tracking system takes it a step further by advising you on a daily basis how you may optimize the amount of time you spend sleeping. The data from your sleep, your everyday activities, and the surroundings of your bedroom were combined to arrive at this conclusion. The input might range from guidance that is more generic in nature to specific recommendations that are precisely customized to the user.

Review of the Resmed S+, a device that watches how you sleep without physically intervening.

When you initially begin using S+, the coaching will concentrate on the conditions in your bedroom in which you sleep. In later stages, you will receive more individualized feedback and recommendations based on the specifics of your own sleep patterns. Some of them are helpful, while others are not as much.

As an illustration, my most recent sleep-related epiphany was as follows: Your time spent in REM sleep was only 0 hour and 29 minutes. Consider this in light of the fact that the average for people your age is 1 hour and 24 minutes. Your sleep follows a pattern that can be predicted, shifting back and forth between deep sleep and REM sleep throughout the course of the night. The length of time spent in REM stages tends to increase as the night progresses. Try sleeping 30 to 60 minutes longer in the morning, when your REM stages are longer, in order to increase the amount of REM sleep you obtain.

In addition to the mobile app, there is now a web dashboard available, which presents statistics in an even more granular fashion. You'll be able to work with your own sleep data and get an accurate understanding of how you sleep by using the suite of user-friendly, interactive tools that are provided for you in this section. You may, for instance, keep a log of how your use of coffee or alcohol connects with the quality of sleep you get.

The information is also sent to the Health app that you have on your iPhone. An application that provides color graphs of your sleep history data, insights into your sleep patterns, the Relax Daytime function, and other features can be downloaded onto an Apple Watch if you own one of those devices.

Review of the Resmed S+, a device that watches how you sleep without physically intervening.

The question of whether or not the sleep tracker is reliable naturally arises. It is not possible to provide a definitive response to this question due to the fact that sleep is not a precise science, unless you are linked up to a polysomnography (PSG) machine, which is widely regarded as the industry benchmark for sleep assessment. According to Resmed, their technology has been shown successful in more than ten clinical tests when compared to devices of the same kind.

The vast majority of sleep tracking alternatives available today rely on accelerometers, although some additionally make use of heart rate sensors. The information that you receive from the S+ each morning appears to be of a higher quality than that which is provided by the vast majority of the activity trackers that are now available. It also takes it one step further by utilizing this data in order to present you with feedback that can be acted upon.

A contactless sleep tracker with a plethora of functions, the Resmed S+ is evaluated here.

Lastly, in addition to these functions, you also have a few extra ones. A Smart Alarm is one of these, and it is designed to wake you up in the morning while you are still in a light stage of sleep. Simply select a 15- to 30-minute window in which you'd like to wake up, along with the sound that you want your smart device to play in order to coax you out of your slumber in a soothing manner. The sound of birds chirping in the forest was my particular favorite part of the experience.

In addition to that, there is a feature called Relax to Sleep that plays calming noises that are linked to your own breathing. As you become more relaxed, you will notice that the sound of your breathing is slowing down as well. This will help you achieve a state in which you are more tranquil. When you fall asleep, the volume of the sound will gradually decrease until it completely stops. The app contains a feature known as Relax Daytime, which serves a similar purpose and can be found there. It is not intended to assist you in falling asleep; rather, it is designed to assist you in relaxing throughout the daytime hours. Very comparable to the practice of meditation.

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Overview \Summary

There are several different products on the market that claim to monitor your sleep, but they all require some kind of touch, either with your wrist or with the surface you sleep on. And this is the most significant characteristic that sets S+ apart. It makes no audible or other physical contact with you while it watches over your rest while it does its job on your nightstand. This is accomplished by the device sending out radio waves that track your breathing as well as your overall body movement. This information is paired with data on the temperature of the room, the amount of light, and the noise levels to offer you an in-depth analysis of your night's sleep.

It is impossible to exaggerate how convenient a product of this kind is. It works remarkably well in conjunction with its all-encompassing app and the other capabilities it offers. Even more, it offers suggestions on how to have a better night's rest. The ability for S+ to turn itself on automatically when darkness falls is about the only thing I could ask for on my wish list.


Anas is an editor of a prestigious publishing company in the United States. She studied Mathematics in Arizona. Anas is also a teacher and one of her long-term goals is to build an institution that offers free education to everyone who are financially not stable. .

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