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EMFIT QS - Under Mattress Sleep Tracker with HRV

3.7 3.7 out of 5 stars 71 ratings

Currently unavailable.
We don't know when or if this item will be back in stock.
Brand Emfit QS
Compatible Devices Smartphones
Screen Size 0.96 Inches
Sensor Type Wearable

About this item

  • SLEEP BETTER AND STAY HEALTHIER – What you measure you can manage better, same goes with sleep and recovery. Better sleep means huge benefits where you’ll stay healthier, reduce stress, maintain healthy body weight, and lower the risk of health problems.
  • PERFORM AT YOUR BEST - Emfit QS gives you a detailed description of your sleep quality and progression of recovery. Armed with this information will enable you to make well-educated choices for daily workouts, meetings and other important events.
  • PREFERRED CHOICE FOR ATHLETES - The only contact-free health and sleep monitor that can provide whole night HRV for recovery and readiness analysis. The best for athletes along with people who like to follow their daily load and nightly recovery.
  • EASY TO SETUP AND USE – Nothing to wear and no need to turn the device on and off. Just slip the ultra-thin sensor under your mattress. Emfit QS automatically starts measuring, and data will be available for deep insight from any device with browser.
  • ACCURATE - Measures heart and breathing rate (highly accurate, clinically validated), heart rate variability, sleep cycle, movement activity, time in sleep and in bed. Data is available in the web application with any pc, tablet or mobile device browser.

Product Description

Sleep is paramount to peak performance – both physical and mental

It is essential to get enough sleep, but sleep should also be structured properly and contain enough REM sleep for the recovery of the mind, and DEEP sleep for the recovery of the body. EMFIT QS+ACTIVE records total amount and structure of sleep, the percentages of recuperating REM and DEEP sleep.

EMFIT QS+ACTIVE also records heart rate, breathing rate, and movement activity during the entire night. Overall, it enables you to find sleep affecting patterns and improve them. Results of training or lifestyle changes can be studied with the long-term trends feature.

sleep score under mattress sensor

Ensure you recover enough at night

EMFIT QS+ACTIVE is a powerful and automatic sleep and recovery tracker that will help you take control over your health and wellness, giving you more energy to shine in everything you do.

whole night heart-rate-variability

Automatic measuring

There’s absolutely nothing to wear and no need to turn equipment on and off. When you go to sleep it automatically starts measuring and in the morning after you leave the bed, the data is available for deep insight from your smartphone, tablet or computer.

sleep monitor tracker sleep monitoring device

Heart-Rate-Variability Shows Your Recovery and Readiness

EMFIT QS+ACTIVE is the world’s most sophisticated ballistocardiograph. With incredible resolution, it records heart contractions, breathing and body movement bio-signals.

EMFIT QS+ACTIVE is the only contact-free health monitor on market that can provide recovery and readiness analysis based on whole night heart-rate-variability. This is why professional athletes, triathlonists, cyclists, football players and other sports enthusiasts have chosen to use EMFIT QS+ACTIVE.

•	Sleep stages REM deep light awake

Medical grade under-mattress sensor

The electro-active material itself is self-biased and does not use any power. Only the small electronics placed on the floor uses electricity and has the wireless WI-Fi transceiver. Under-mattress placement ensures longevity for many years use without need to regular replacement.

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Product details

  • Is Discontinued By Manufacturer ‏ : ‎ No
  • Product Dimensions ‏ : ‎ 8 x 8 x 3.5 inches; 1.85 Pounds
  • Item model number ‏ : ‎ Emfit QS
  • Date First Available ‏ : ‎ December 8, 2015
  • Manufacturer ‏ : ‎ Emfit
  • ASIN ‏ : ‎ B0158W3E2A
  • Customer Reviews:
    3.7 3.7 out of 5 stars 71 ratings

Product guides and documents

Important information

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Statements regarding dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease or health condition.

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Customer reviews

3.7 out of 5 stars
3.7 out of 5
71 global ratings

Top reviews from the United States

Reviewed in the United States on February 27, 2019
Customer image
5.0 out of 5 stars Effective, Non-evasive Sleep Tracker
Reviewed in the United States on February 27, 2019
I purchased the Emfit QS in January 2018 and have spent the last year sleeping with it. First, it is non-evasive. You don't have to put anything on your body, turn anything on or start/stop anything before and after sleeping. You simply lay in bed, it senses your presence, begins recording and uploads your data during the night to the Emfit servers. When you exit bed in the morning it recognizes it and begins to put together a picture of your night of sleep. By the time I have my coffee made, I can jump on my phone or look at my computer and get all the data. And there is a ton of data it provides: sleep time/score, breakdown of light/deep/REM cycles, HRV w/ nervous system balance, avg and resting heart rate, respiratory rate, movement/restlessness and finally a proprietary recovery score (that probably still needs some work).

The next question people ask is: are the metrics accurate? I also wear an Oura Ring 24/7. It, like the Emfit QS, tracks all the metrics mentioned above. When comparing the results of the two devices, while not matching exactly, show a very clear correlation. They are identical in the sense that when one shows a lower HRV or high HR, the other device has recorded the same trend. Then you have to look at the results provided by the QS and compare it to what you think should be happening, I've found they gel. For example, I was in a bad bike vs car accident in April 2018 that knocked me out of triathlon training for about 5 months while I recovered. During that period the Emfit recorded much high HRV values while recording high resting heart rate values as I lost fitness and aerobic conditioning. Weeks after returning to training, HRV numbers began to drop while my resting HR lowered as well.

I have tried several different sleep trackers and HRV/HR measuring tools. This and my Oura Ring are 1 and 1a on the list of effective devices. If you are looking for a hands-off biohacking/recovery measuring/sleep tracking tool I would highly recommend this.

Let me cover some of the negatives. I had, and others have reported, some connection issues with their home WiFi. I did find it quirky when I first set it up and had difficulty getting it to connect. Once connected though, I have had no drops and there has not been a single night that data was not recorded. Next, there is no option to place it in airplane mode. There is no internal memory to record during the night and then upload the data later. The device it constantly reaching out to your WiFi every six seconds and uploading data while you sleep. For some concerned about having a WiFi signal that close to you every night, this may not be the device for you. Having said that, the Emfit QS does come with a long power cord and a transmitting device that you can place up to six feet from your bed. Nevertheless, a semi-easy update to this device would be a 2.0 model with internal memory that can turns itself off, record your data all night and then turn on and upload the recorded data once you out of bed. Lastly, if you spend a lot of time in your bed, say watching TV or reading before you sleep, the device night confuse it with you attempting to fall asleep unsuccessfully. I read for at least 30 minutes before I turn the lights off. I found that if I just get out of bed to check if the doors are locked after reading, the device recognizes my sleep patterns enough that it does not record the extra time.

A couple of other side notes. I have a Tuff N Needle memory foam mattress. It provides no difficulty in getting any bio-metric signals through it. It also does not pick up my wife's signals when she sleeps, even if we are up against each other.

Overall it has proved to be a solid device that provides good, valid sleep and recovery data.
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24 people found this helpful
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Reviewed in the United States on December 31, 2016
20 people found this helpful
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Reviewed in the United States on March 10, 2018
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Top reviews from other countries

Alan Speirs
3.0 out of 5 stars Better than wrist based devices, but not perfect by any means
Reviewed in the United Kingdom on October 20, 2018
27 people found this helpful
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Garry Hares
5.0 out of 5 stars I'm in HRV HEAVEN!
Reviewed in the United Kingdom on November 26, 2017
4 people found this helpful
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Shopper
2.0 out of 5 stars Not reliable enough
Reviewed in Germany on October 17, 2018
3 people found this helpful
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R Moola
4.0 out of 5 stars Great device. Slightly fiddly set up but once set ...
Reviewed in the United Kingdom on September 27, 2017
One person found this helpful
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Amazon Customer
5.0 out of 5 stars In Sleep We Trust
Reviewed in the United Kingdom on November 7, 2019

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