Thank you. Is there something like this that doesn't blindly hope your sleep cycle is going to be in sync with the video but instead uses your live biometrics to know when to start and make each of the transitions?
There's a bit of a chicken-and-the-egg problem there... the idea behind the track is to influence your brain into the desired states. But if we're listening to the brain to "get permission" first? Doesn't really work. If you have a pile of EEG recordings to reasonably estimate the actual length of your sleep cycles, it would certainly be possible to adjust the track to a different length.
Brett Cameratraveler