Recent firmware updates

Written by Jonathan
Last update

Dreem is updated regularly. These updates make it possible to increase the precision of the algorithms and to enrich your experience in app (addition of relaxation exercises, various improvements). You'll be informed inapp each time your firmware has been updated. 


Important: To make sure you get the latest headband updates, be sure to plug it in every morning and keep an active Wi-Fi connection.

Version 4.7.49- February 4th, 2021

  • Fix code couleur de la LED

Version 4.7.46- January 14th, 2021

  • Happy new year!
  • Implementation of the new version of the Bluetooth driver
  • New state machine to improve Wifi stability
  • Improvement of the microphone usage to reduce battery consumption
  • Fix edge-case issue with alarm calendar
  • Fix memory issue when mobile app sends an invalid timezone

Version 4.7.30 - October 7th, 2020

  • Minor improvements on alarm and report generation.
  • Resolution of a bug preventing the battery from exceeding 90%.
  • Improved headband detection on the head.

Version 4.7.21 - July 8th, 2020

  • Various improvements and bug fixes

Version 4.7.11 - April 15th, 2020 

  • Generalization of performance improvement in the detection of wakefulness, deep sleep and sleep time with Dreem 1 headbands
  • Various improvements and bug fixes

Version 4.7.6 - January 23rd, 2020

  • [Dreem 2] - Better performance on sleep staging, better accuracy in detecting wake, deep sleep and overall sleep duration.

Version 4.6.61 - November 21st, 2019

  • Various improvements and bug fixes

Version 4.6.56 - October 24th, 2019

  • Improved the volume balance when both an exercise and a background are used in a falling asleep feature
  • Fixed a rare issue where the headband could freeze before shutdown 

Version 4.6.36 - September 16th, 2019

  • Added short awakenings to night data
  • Fixed bug where a sleep onset feature could play outside a record
  • Various other fixes and improvements

Version 4.6.19 - August 20th 2019

  • Various improvements and bug fixes 

Version 4.6.9 - July 10th 2019

  • Various improvements and bug fixes 

Version 4.4.19 - June 4th 2019

  • Fixed an issue where volume transitions were abrupt during sleep onset features
  • Improved reliability of position data (e.g. standing up, lying down) during the night
  • Fixed issue where app would say Wi-Fi wasn't configured when it was

Version 4.2.38 - May 5th 2019

  • Various improvements and bug fixes 

Version 4.2.36 - April 11th 2019

  • Various improvements and bug fixes 

Version 4.2.8 - February 14th, 2019

  • A firmware update is now indicated by a white, blinking LED
  • When it is ringing, the alarm can now be "snoozed" by pressing on the headband button. As a reminder, the alarm rings again if the user falls back asleep, or if 10 minutes go by
  • As usual, a variety of other smaller fixes and improvement

Version 4.0.86 - February 7th, 2019

  • Various improvements and bug fixes 

Version 4.0.85 - January 28th, 2019

  • Fixed issues on volume of sleep onset features
  • Added sound signalling on nap feature
  • Fixed an issue where the alarm would continue ringing more than 30 minutes
  • Various other improvements and bug fixes

Version 4.0.66 - December 5th, 2018

  • Improvement of algorithms depending on pulse oximeter sensor
  • Various smaller fixes and improvements

Version 4.0.48 - October 25th, 2018

  • Fixed an issue which prevented volume adjustments during a Relax session
  • Fixed a bug that would occur when dismissing the alarm through the touchpad
  • Fixed an issue where some metrics would be missing from the app
  • Various other fixes and improvements
Version 4.0.37 - October 10th, 2018
  • Fixed an issue where the Sleep Score could be accidentally set to 0
  • After ringing continuously for 5 minutes, alarm now rings at maximum volume, and stops ringing after 15 minutes
  • Touchpad can now be unlocked with button press
  • Compatibility with major upcoming product release 
  • Other minor bug fixes
Version 3.9.39 - September 27th, 2018
  • Improved EEG quality detection
  • Improved hypnogram
  • Various bug fixes and improvement
Version 3.9.36 - September 4th, 2018
  • Minor improvements and bug fixes
Version 3.7.71 - August 13th, 2018
  • Deployment of optimized stimulations (quantity, phase and sound), following the results of the multiple Adventurers protocols having taken place during last months

Version 3.7.70 - July 26th, 2018
  • Minor bug fixes and improvements
Version 3.7.66 - July 12th, 2018
  • Improved calculation for sleep onset duration 
  • Improved automatic sleep onset feature volumes
  • Improved heartrate in Live EEG
  • Fixed a bug that occurred when user set an alarm after the first one had rung
  • Various other improvements and bug fixes

Version 3.7.61 - June 15th 2018

  • Back-up alarm: If you lose the headband during the night, or if its battery reaches a critically low level, the headband will stop recording, but the alarm will still ring.
  • Various other minor improvements and fixes 
Version 3.7.50 - May 30th 2018
  • Improved Live EEG quality indicators 
  • Various other minor improvements and bug fixes
Version 3.7.44 - May 15th 2018
  • Minor bug fixes and improvements 
Version 3.7.43 - May 7th 2018
  • Improvement of Dreem algorithm in Sleep Onset detection
Version 3.7.40 - April 26th 2018
  • Sound signalling now has its own volume
  • Improved "off-head" detection
  • Improved battery % calculation
  • Remove the unexpected prompt to reset the wifi network
  • Various other improvements and fixes
Version 3.7.27 - March 22th 2018
  • Update of the Dreem algorithm: Fixed deep sleep detection problems and alarms in case of bad quality on the EEG signal. 
  • Falling asleep features now turn off automatically after 2h, to accommodate longer sleep onset durations 
Version 3.7.24 - March 13th 2018
  • Minor bug fixes and improvements
Version 3.7.18 - March 2nd 2018
  • Improved touchpad calibration to prevent false activation
  • Several stability improvements and minor bug fixes
Version 3.7.13 - Feb 8th 2018
  • To prevent spurious detection, touchpad now locks itself when user is asleep, and requires swipe to unlock 
  • Records can now be started with 60% of battery or higher
  • Fixed issue where most recent record was deleted in case of depleted storage
  • Added smaller improvements, enhanced stability and fixed bugs
Version 3.6.104 - Jan 12th 2018 
  • Headband can now be used while the firmware is updating
  • Improved stability and fixed bugs 
Version 3.6.95 - Dec 21st 2017 
  • Live EEG now has signal quality indicators
  • Added in-app hardware error diagnostics
  • Firmware update now indicated with a white LED
  • Improved last sleep stage detection on Alarm card
  • Various other improvements and bug fixes
Version 3.6.87 - Dec 7th 2017 
  • Improved double tap sensitivity 
  • Added detailed statistics about falling asleep features used into night report
  • Changed English sound signalling
  • Improved stability and fixed other bugs
Version 3.6.81 - Nov 22th 2017 
  • Improved battery percentage estimation
  • Fixed audio issues when swiping volume up or down 
  • Reduced brightness of red light (pulse oximeter) 
  • Fixed issue where BLE wouldn’t turn on after button press during alarm ring
  • Remastered all sounds for better quality
  • Improved stability and fixed other bugs
 Version 3.6.65 - Oct 27th 2017 
  • Included 4-7-8 breathing exercises, meditation 
  • 80% battery level now required to start a night
  • Introduced new “step increases”  LED pattern during charging
  • More reactive audio feedback on breathing meditation
  • Alarm now goes to maximum volume when ringing for 30 min
  • Long touch no longer active during night
  • WEP security for Wi-FI now supported
  • Improved Wi-Fi network scanning for faster loading 
  • Reduced headband boot time
  • Improved stability and fixed other bugs 
Version 3.6.50 - Sept 26th 2017
  • Start / resume falling asleep feature now done with a double tap instead of simple tap
  • Low battery LED now orange instead of red
  • BLE now shuts down immediately after night start
  • Alarm volume now decreases if wake detected
  • Improved stability and fixed other bugs