About ResMed S+

Manufactured by a company with more than 25 years of experience developing research-based products for the diagnosis, treatment, and management of sleep, the ResMed S+ is claimed to be the world’s first non-contact sleep sensor designed to monitor, analyze, and improve your sleep, all from the comfort of your own home. In fact, the ResMed S+ is claimed to improve your sleep from the very first night you use it.

You spend about one-third of your life sleeping, and you want to know if the ResMed S+ can not only help you sleep better, but whether or not sleeping better can translate into a better day. We’ll get to that in a moment, but let’s first take a closer look at exactly how the ResMed S+ is claimed to work.

How Does ResMed S+ Claim to Work?

If you’ve ever had a bad night’s sleep (and who hasn’t?), you know that it doesn’t just affect you during the night, but far into the day as well. This includes grogginess, the inability to focus on the task at hand, irritability, and much more. And if this continues, lack of quality sleep can have a very real impact on your overall health as well.

However, according to ResMed, they’re out to change this. The company has been in business for more than 25 years manufacturing medical devices that help people sleep better, including sleep apnea masks, CPAP devices, humidifiers, and more. More recently though, ResMed released the S+, a contactless device that uses very low power radio waves to detect and track the expansion and relaxation of your chest as you breathe (similar to how bats use echolocation), as well as “overall body movements such as positional changes, arm twitches and shrugs.” On top of this, ResMed claims the S+ can also monitor light, temperature, and noise levels in your room. 

Then, the S+’s clinically proven software algorithms are claimed to take this information, compare it against averages for your age and gender, and provide a daily sleep score, which is sent directly to your smartphone or tablet, along with suggestions and other benefits based on the results. These include:

  • Personalized feedback that can help you identify sleep issues and make them right.
  • The S+ is claimed to relax you to sleep by synchronizing sounds with your breathing.
  • You’ll be notified how the proper light, noise, and temperature settings can help you set the stage for good sleep.
  • The S+’s ability to easily record voice and text-based memos can help clear your mind while building tomorrow’s to-do list.
  • By understanding your sleep patterns, you’ll be able to improve them.
  • Smart Alarm wakes you gently during the light stages of sleep, so you feel more refreshed and less groggy.

Because of this, ResMed calls the S+ the “next level of sleep science” that can improve your sleep—and your life.

How Is the ResMed S+ Used? Will it Work with My Phone or Tablet?

The outer portion of the ResMed S+(known as the frame) comes in a brushed nickel finish, and looks like an upturned rectangle with rounded edges. The S+’s interior portion is a smaller rectangle (known as the pod) made of smooth plastic, and is roughly half the size of the frame. It’s this smaller section that does all the monitoring as you sleep, and then transfers this information to your smartphone or tablet in the morning.

According to ResMed, the S+ can be set up over 4 steps: 

  • Download the S+ by ResMed app to a supported smartphone or tablet.
  • Place the S+ unit on a nightstand within arm’s length of your bed. 
  • Connect your smartphone to the device using Bluetooth.
  • Select the “Sleep” option.

…and will work with the following devices:

  • Apple smart phones: iPhone® 4, 4s, 5s, 5c, 5
  • iPad Mini™ and iPod Touch® (5th generation)
  • Apple operating systems: iOS 6 and iOS 7
  • Android smart phones: Samsung S3, S4, S5, Note 2, 3 and Moto G
  • Android operating systems: 4.0 (Ice Cream Sandwich); 4.1, 4.2 and 4.3 (Jelly Bean); and 4.4 (KitKat)

But enough about the ResMed S+’s details. You’re here to find out whether or not it works as advertised and if it can help you get a better night’s sleep. So can it? Perhaps, but keep the following in mind before placing your order:

What Are Consumers Saying About the ResMed S+?

As we mentioned at the beginning of this review, ResMed has been in business for more than a quarter century and appears to have a very positive reputation within the industry. The company also holds an A+ rating with the Better Business Bureau with just 2 closed complaints (as of 1/2/15).

From a product perspective, the ResMed S+ has been featured in the Wall Street Journal, Gizmodo, Men’s Journal, medGadget, and many others, and also appears to have a primarily positive online reputation with customers. As such, based on reviews found on Amazon.com and BedBathandBeyond.com, as well as articles featured on TomsGuide.com, MacWorld.com, and many others, the most common compliments seem to reference:

  • That the S+ is easy to setup and use (more about this in second)
  • The S+’s attractive design
  • The ability to track sleep without wearing any devices, which can help you sleep better and obtain more accurate readings
  • The S+ doesn’t just give you data, but also gives you actionable steps that you can use to improve your sleep experience
  • The ability to fully integrate your data with iOS Healthkit

On the other hand, by far the most common complaint we encountered during our research is that the ResMed S+ provided inaccurate readings. In some instances, customers claimed these inaccuracies were so glaring that it negatively impacted the overall quality of their data. This included listing users under “light sleep” when they were actually wide awake, and listing them under “REM sleep” even after they had gotten up to use the restroom. Granted, ResMed fully discloses on their website that the S+ may misread calm, even-breathed wakefulness as “light sleep.”

Another common ResMed S+ complaint was that more than one device cannot be used in a room. You can use one S+ unit to track 2 different people, although only at different times. Also, if you’re using the S+’s synchronized sounds, they could potentially interrupt your significant other’s sleep, as might the LED light on the top of the pod. 

Finally, we read more than one complaint that the ResMed S+ app provides a lot of information at once, and some considered it “cluttered.”

Consider Your Options

Keep in mind that there are thousands of products on the market promising to provide you with a better night’s sleep, including Mattress Wedges, supplements such as Lunar Sleep and Alteril, orthotics such as ZQuiet and Breath Active, and even masks such as Miracle Mask and Jidue. Each of these products addresses a specific cause of sleep problems, which means that in order to get a better night’s sleep, you’ll first need to get a full understanding of what’s causing you to sleep poorly.

With this in mind, the ResMed S+ may help you identify some of the causes of your sleeping problems through its trial and error questions (e.g. Did you ingest alcohol or caffeine before going to bed? Did you exercise today?) and provide recommendations, but it won’t directly address your sleeping problems. As such, if your lack of sleep is causing problems during the day, you’ll need to visit your doctor’s office for an in-depth examination and a more personalized treatment plan.

Is the ResMed S+ Clinically Proven?

According to the ResMed S+ website, “The S+ technology's ability to accurately measure sleep patterns has been published in a number of scientific papers. Specifically, this technology has been tested and proven against expert manually scored data of patients gathered in several accredited sleep laboratories.” To back up these claims, the company provides links to several of these studies, nearly all of which compare the accuracy of radio-frequency (RF) sensors with traditional methods.

For the most part, it appears that RF sensors are about as accurate as more traditional sensors, although the first study referenced on the ResMed S+ website concludes, “Noncontact biomotion approaches to sleep measurement provided reasonable estimates of [total sleep time], but with a bias to over-estimation of sleep.” In other words, as noted above, one of the main detractors of the S+ is the tendency to track you as being asleep when you’re not.

Will the ResMed S+ Work for All Types of Sleepers?

Although there’s nothing specifically noted on the website about which types of sleepers the ResMed S+ will work for, based on the fact that its sensors monitor the rise and fall of your chest, it’s reasonable to assume it works best for back sleepers. With this said, on the Feedback section of the S+ website, it’s indicated that some of your suggestions (see image below) might entail sleeping on your side, so it’s likely that the S+ can work for side sleepers as well.

Feedback section of the S+ website

However, we’d have to wonder how well the ResMed S+ works for stomach sleepers. Unfortunately, none of the customer reviews we encountered during out research provided any insight into this.

ResMed S+​ Pricing & Refund Policy

The ResMed S+ is priced at $149.99, which includes free Standard shipping. Express shipping can also be purchased at checkout for an additional $10.

The ResMed S+ smartphone or tablet app is completely free of charge through iTunes and Google Play.

If purchased directly through the manufacturer, the ResMed S+ comes with a 30-day refund policy, less S&H charges, as well as a 1-year limited warranty. In order to contact ResMed’s customer service, you’ll need to call (800) 424-0737.

However, the ResMed S+ is also available through several third-party retailers, such as Amazon.com, Bed Bath & Beyond, and Best Buy, so your refund policy will vary depending where it’s purchased.

Is ResMed S+ Your Solution to Better Sleep?

Chopping to the Point: When it comes down to it, the ResMed S+ is manufactured by a company who has decades of experience producing sleep-related products, so it’s definitely not a gimmick, and you can expect to gain a lot of insight into your sleeping patterns by using it. 

However, because the ResMed S+ isn’t a medical device, it might be the case that all of this information won’t help you sleep significantly better. And if you have chronic sleep problems that impact your day-to-day life, your money might be better spent consulting with a sleep specialist. 

As such, we might imagine that ResMed’s target market for the S+ are individuals who want to sleep better, but who may not be sleeping very poorly in the first place. In addition, because sleep monitors are in their infancy, at $150, the S+ might be especially attractive to early adopters.

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2 Customer Reviews for ResMed S+

Average Customer Rating: 3.0
Rating Snapshot:
5 stars: 1 4 stars: 0 3 stars: 0 2 stars: 0 1 stars: 1
Bottom Line: 50% would recommend it to a friend
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  • It's made an appreciable difference in two weeks

    I purchased the S+ from Amazon a couple of weeks ago after reading several reviews on Amazon. There seemed to be a bias about the app. Android people hated it and IOS users were much more favorable. Having both types of device I opted to use the IOS.

    I started getting scores in the 60's (75 is average) but following the tips and by paying much more attention to sleep hygiene, I am averaging in the 70's and 80's now with one night of 91.

    Overall I think it is an excellent product based on my limited experience.

    Bottom Line: Yes, I would recommend this to a friend

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  • 2 out 3 people found this review helpful

    Terrible Product. Stay Away.

    This product is extremely buggy and the support is terrible. If you buy this product you will regret it.

    Bottom Line: No, I would not recommend this to a friend

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