Why I use to fall into sleep while liste

Maybe the exercise involved in changing the dimensions increases the blood flow to your brain? Maybe it puts you out of the sweet spot for the subliminal hypnotic messages on your recordings? I used to experience the same thing, but changing the dimension had to do with tilting the chair back. Actually I like Detlof's theory better.

In a music hall with reflections from the rear that are a bit too strong, your ears (and brain) struggle to focus. This process tires anyone listening. Perhaps there is a strong reflection at your "sleeping position" that you are unaware of, or is it that you fall asleep to certain favorite recordings, and not others?

worldcup86: i'd bet the problem is with your rack. too quiet. get yurself onna them sistrum things and the ringing will keep ya' awake. 'least that's what i hear from draudio.

Hi,
I fall asleep at different recordings even with Super Natural recording at lound volume. It doesn't only happen to me, but my wife also. Talked to a friend of mine, and what he said is my speakers are on the right spots that all requencies are smooth out so that my mind is more relax???
However, I just changed the speaker setup to along the long wall last two week, and no more sleeping. The sound on the long wall is better than the short wall in term of detail, imaging, soundstage, but I lost a little bit of depth. So, that's all of my experience, and I have no idea why it happened like that.
Thanks