Certainly the action of GABA is highly individual and different. That is why I can only reflect subjective feelings: So, I have taken every night before bedtime is a capsule and noticed already after less than a week that I arrived in the morning only much heavier from the feathers. From Ausgeschlafensein could be no question.
The sleepiness soon extended throughout the day and was especially when driving on long journeys risky. His eyes fell to me too often, there was a need to rest, and half awake dreaming. My dark moments, unfortunately, I could not lighten it, this was the real purpose of the exercise.