commercial link removed
Im sure there were a lot of people with the same question, but please be patient 
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Question is: does that thing really work??
off cource on the site they have written something, but im asking people, who really tested that devices ;]
If you use the forum search function and search for “rem dreamer”, you will find several topics about it, for example these:
[Having trouble contacting the REM Dreamer guys)
There are also several topics here in the Pathways forum about other brands of goggles, home made solutions, etc. 