While I'm happy there's more R&D going on in this field, I'm highly skeptical about the use of TcU -- people move around to much while sleeping for this approac

While I'm happy there's more R&D going on in this field, I'm highly skeptical about the use of TcU -- people move around to much while sleeping for this approach to be effective or safe... and there are less invasive ways to accomplish this. One of my projects is a dreaming machine which combines eeg, sounds, and lights to aid in recognition of dream states. The eeg data is used to generate ambient soundscapes that change theme based on the level of sleep (awake/rem/light/deep) and during rem sleep it triggers a set of leds mounted inside of my sleep mask. It works fairly well and is totally passive/non-invasive.