I've recently become very excited about the possibility of listening to binaural beats for healing and chakra alignment while I sleep, but if I understand you, I'm not getting any benefit unless I use a headset, and I shouldn't be listening to binaural beats for 8 hours, correct?
Correct, without headphones you won't get the "binaural" effect. I personally wouldn't listen to 8 hours, but tons of people love my 8-hour track, so it's really up to the individual.
D Chap