How S+ by ResMed works

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    Non-contact sleep system

    S+ by ResMed uses a patented non-contact radio frequency (RF) technology to monitor your breathing and body movement while you sleep. Sensors in S+ detect key factors that affect your sleep environment including loud sounds, light levels and temperature. These are analysed along with how they impact your sleep to produce customised suggestions for helping you to get a better night's sleep.

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    Personalised help from world-class sleep experts

    The clinically proven technology of S+ by ResMed is your smart link to sleep experts, who are ready to analyse your sleep patterns and provide personalised advice.

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    Sleep Score

    Measuring on a scale between 0 and 100, S+ by ResMed combines the different elements of your sleep, mapping them against averages for your age and gender.

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    Sleep breakdown

    Sleep follows natural patterns. Our graphs will break down your sleep into Light, Deep and REM sleep, as well as periods of wakefulness. Understanding your sleep patterns is an important step toward consistently better nights.

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    Holds the pod in position at a suitable level above your mattress.

    Power supply unit

    An AC-DC adapter with 2 USB ports.

    USB power cable

    Connects the S+ pod to the power supply unit.

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    Contains the sensor that collects information about your sleep and your environment.


S+ by ResMed works by detecting the movement of your upper body while you sleep.

The movement it detects consists of the expansion and relaxation of your chest as you breathe in and out, and overall body movements such as positional changes, arm twitches and shrugs.

It includes software algorithms that recognise the combination of respiration and body-movement signals, so that the overall sleep state can be reliably assessed. For example, if you’re moving continuously, you’re less likely to be asleep; conversely, if you’re in deep sleep, there will be relatively little movement and your breathing will be much more regular.

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Feature Rich Technology

Key Features that help you to sleep better for longer


By giving personalised, daily feedback, S+ by ResMed helps you understand your sleep issues so you can fix them.

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S+ by ResMed synchronises soothing sounds to your pre-sleep breathing, helping you drift off more easily.

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S+ by ResMed will help you create the ideal sleep environment by telling you how light, noise and temperature levels are affecting your sleep.

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By offering simple text and voice tools for recording tomorrow’s to-do list, S+ by ResMed helps you go to sleep with a calm, uncluttered mind.

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S+ by ResMed tells you what’s influencing your sleep patterns, and helps you improve them.

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Being awoken from light sleep vs. deep sleep leaves you feeling more refreshed.

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The Sleep Report

Feedback, tailored to you and your sleep

You’ll get tailored feedback from S+ by ResMed after your first night’s sleep, along with tips on improving  sleep conditions in your bedroom.

While you’re learning about your sleep environment and how to improve it, the experts behind S+ by ResMed will spend a few days collecting and analysing your information, and then send you personalised feedback and suggestions based on your sleep patterns.

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The technology behind S+ by ResMed

Technology Found in Nature

S+ by ResMed measures movements using ultra low power radio waves (less than 1/10 of Bluetooth®). The basic principle is similar to the echo location system used by bats to hunt insects.

S+ by ResMed transmits a short pulse of radio waves at 10.5 GHz and then listens for the echo of the pulse. As you move, the phase of the echo changes and is converted into a signal that reflects your movement.

Clothing and blankets are almost transparent to radio waves at the frequencies we use. The echo signal is mostly generated by reflection from your body – as far as radio waves are concerned, you’re a large watery object!

Contactless Technology

A major component of S+ by ResMed system is our patent-protected Sleep Sensor that lets it monitor your sleep without actually touching you. No mattress strips. No wristbands. Just a nightstand monitor that can accurately record your breathing and movement.

Proprietary software performs a variety of signal analysis tasks including respiration analysis and sleep quality measurement.

S+ by ResMed technology’s ability to accurately measure sleep patterns has been published in 10 scientific papers, and has been tested and proven against expert manually scored patient sleep data gathered in several accredited sleep laboratories.

Award winning innovation

S+ by ResMed is an award winning sleep innovation.

S+ by ResMed was initially released in the USA and Canada by global sleep specialist ResMed and has been widely acclaimed in the US for it’s success in helping poor sleepers get back on track with their sleep.

S+ by ResMed has also been recognised for innovation and design by the prestigious RedDot and CES award categories.

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* ResMed recorded and analysed 2,000,000 nights of sleep in the development of S+

** Users with average sleep scores between 50-60 improved their sleep by an average of 44.71 minutes per night after one week of use.

*** Below average users are those with an average sleep score below 75. Poor sleep is defined as an average sleep score between 50-60. Very poor sleep is defined as an average sleep score between 30-50. Users with average sleep scores between 30-50 improved their sleep by more than 70 minutes per night after one week of use. Aggregate S+ user data as of 03/19/2015. All data is derived from a sample size of [5932] users as of 03/19/2015. Your results may be different.

Note: S+ is not a medical device. If you are seeking information on how to treat a sleep disorder, you should talk to your healthcare provider.