I'm dying to test Dreem 2, but having burned by so many gadgets that went out of business, including a very similar Zeo Sleep Tracker[1] almost 10 years ago, I'll hold for a while more to see if the company will survive.

Their recent research comparing Dreem to a regular PSG [2] is pretty impressive, but I'm skeptical of their business model, and am concerned they won't survive for long.

[1] https://www.mobihealthnews.com/20772/exclusive-sleep-coach-c...

[2] https://www.biorxiv.org/content/biorxiv/early/2019/06/10/662...