---
product_id: 284155641
title: "EMFIT QS - Under Mattress Sleep Tracker with HRV"
brand: "emfit qs"
price: "₩3435681"
currency: KRW
in_stock: true
category: "Health and Beauty"
url: https://www.desertcart.kr/products/284155641-emfit-qs-under-mattress-sleep-tracker-with-hrv
store_origin: KR
region: South Korea
---

# EMFIT QS - Under Mattress Sleep Tracker with HRV

**Brand:** emfit qs
**Price:** ₩3435681
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** EMFIT QS - Under Mattress Sleep Tracker with HRV by emfit qs
- **How much does it cost?** ₩3435681 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/284155641-emfit-qs-under-mattress-sleep-tracker-with-hrv)

## Best For

- emfit qs enthusiasts

## Why This Product

- Trusted emfit qs brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Description

Data features:  Whole night heart-rate-variability (HRV) RMSSD in 3 min. epochs Resting heart rate Sleep stages (REM, deep, light, awake) Heart and breathing rate every 4 sec. Sleep score Tossing and turning, and movement activity Time in bed and in sleep Autonomic Nervous System balance  Free Software-as-a-Service (SaaS) for private use:  Web application to access the data with any browser Detailed sleep reports Long term data trends up to one year Access to export the data at .csv format  Package includes:  Medical grade under-mattress sensor, size 6 x 56 centimeter Electronics puck is connected to the sensor with 1,8 meter (6 feet) braided cord 5 V medical grade power supply (input 110-230V AC); plug adapters for USA, Europe incl. UK, and Australia Set-up guide  Technical:  Uses 2.4 GHz Wi-Fi, 802.11 b/g 10 hours memory for any interrupted wi-fi connection Embedded and cloud data processing Does not need to wear out your phone battery for data processing FCC & CE certifications Does not contain rechargeable or other batteries Various API and raw data available on extra cost for research and other professional use  2-year full warranty:  Equipment may be returned for replacement or repair  Disclaimer  Restful stay awake in bed is interpreted as sleep Not a medical device - not intended for any illness or condition diagnosing or monitoring User manual can be found on the product detail page also

## Features

- 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)

## Images

![EMFIT QS - Under Mattress Sleep Tracker with HRV - Image 1](https://images-na.ssl-images-amazon.com/images/I/41n75kA0sRL.jpg)
![EMFIT QS - Under Mattress Sleep Tracker with HRV - Image 2](https://images-na.ssl-images-amazon.com/images/I/51bgiynTYvL.jpg)
![EMFIT QS - Under Mattress Sleep Tracker with HRV - Image 3](https://images-na.ssl-images-amazon.com/images/I/51HWKCgVmHL.jpg)
![EMFIT QS - Under Mattress Sleep Tracker with HRV - Image 4](https://images-na.ssl-images-amazon.com/images/I/51mu0mudvKL.jpg)
![EMFIT QS - Under Mattress Sleep Tracker with HRV - Image 5](https://images-na.ssl-images-amazon.com/images/I/51ZITEQGVkL.jpg)

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**Shop now:** [https://www.desertcart.kr/products/284155641-emfit-qs-under-mattress-sleep-tracker-with-hrv](https://www.desertcart.kr/products/284155641-emfit-qs-under-mattress-sleep-tracker-with-hrv)

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-02-03*