Well, as far as I understand, the point of the product is not to change your sleep schedule completely, it's to optimize it to wake you up at the optimal time i

Well, as far as I understand, the point of the product is not to change your sleep schedule completely, it's to optimize it to wake you up at the optimal time in the REM cycle, making sure that you wake up refreshed and full of energy. So you set the alarm for 6:30 AM, and it wakes you up somewhere between 6:15 and 6:45.