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$239.00
FREE delivery: Wednesday, Nov 4 Details
Fastest delivery: Friday, Oct 30 Details
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Return policy: Returnable until Jan 31, 2021
For the 2020 holiday season, returnable items shipped between October 1 and December 31 can be returned until January 31, 2021.
EMFIT QS - Under Mattress... has been added to your Cart

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EMFIT QS - Under Mattress Sleep Tracker with HRV

3.8 out of 5 stars 65 ratings

Price: $239.00 ($239.00 / Count)
  • 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.

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Frequently bought together

  • EMFIT QS - Under Mattress Sleep Tracker with HRV
  • +
  • Withings Sleep - Sleep Tracking Pad Under The Mattress with Sleep Cycle Analysis
Total price: $338.00
Buy the selected items together

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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.


Product details

  • user guide Manual [PDF ]
    installation manual Manual [PDF ]
  • 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 17, 2015
  • Manufacturer : Emfit
  • ASIN : B0158W3E2A
  • Customer Reviews:
    3.8 out of 5 stars 65 ratings

Important information

Legal Disclaimer

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.


Customer Questions & Answers

Customer reviews

3.8 out of 5 stars
3.8 out of 5
65 global ratings
How are ratings calculated?

Top reviews from the United States

Reviewed in the United States on March 10, 2018
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39 people found this helpful
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Reviewed in the United States on February 27, 2019
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20 people found this helpful
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Reviewed in the United States on June 26, 2018
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14 people found this helpful
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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
Verified Purchase
24 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
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4 people found this helpful
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Amazon Customer
2.0 out of 5 stars Does not work as stated under the mattress.
Reviewed in the United Kingdom on January 31, 2018
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6 people found this helpful
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Amazon Customer
5.0 out of 5 stars A great investment
Reviewed in the United Kingdom on April 19, 2018
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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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Pages with related products. See and discover other items: sleep monitor tracker, sleep trackers and monitors, Heart Rate Sleep Monitors, Self/less 2015 Movies

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