The Neuroon wearable monitors your brainwaves and pulse, and provides a guided meditation app. Best of all, it's a lucid dreaming tool, which trains you to direct the course of your dreams. If you've never tried it, it's a trip (as they said in the Sixties). And it's open source.
(The Neuroon Open)
This smart sleep mask is the subject of a current Kickstarter campaign that runs until July 27, and which has already raised more than double its US $100,000 goal. The mask incorporates EEG electrodes that press against the wearer’s forehead to detect REM sleep. Once the mask determines that the sleeper is in that zone, it uses LED lights and audio cues that may appear in the sleeper’s dream and trigger the thought: “Oh, I must be dreaming.” The Neuroon Open can also play guided meditations while users fall asleep to increase their likelihood of having lucid dreams.
Fans of Peter Watts recall the device from his exceptional 1999 novel Starfish:
Alice Nakata lies twitching on her bunk, eyes closed... Leads trail away from insertion points on her face and wrist, drape away to a lucid dreamer on the bedside shelf.
Clarke steps closer, studies the telltales on the device; induced REMs cranked to maximum and the alarm's disabled.
(Read more about lucid dreamer device)
Roger Zelazny elaborately described a dream console in his 1966 novel The Dream Master, which was used by a neuroparticipant therapist - a Shaper of dreams.