I have been listening binaural and isochronic beats for studying with good results, but these days I remembered of I-doser and today I used it after many years. (back then, it really didn't work with me). I have a good pair of headphones now along with a headphone amplifier (cleans and boosts the signal), so this might have helped.
This night I slept about 4 hours, maybe less. Then, in the morning, I went and listened the opium dose. Did a relaxation before and a short meditation. Was almost sleeping, than I played the dose and focused on it. During it, I heard some diffuse voices and felt my body buzzing, and that was about it. Right after it, i slept.
Oh my! I just remember getting up of my bed (not with my physical body) and right through the ceiling. Levitated over all my neighborhood. Everything was so beautiful! I remember it was raining in this lucid dream and I could watch the water with so many details. I could look at my hand and feel the touch of it in my body.
At one point, I decided to fly. Looked up to the clouds, flew right up and then horizontally. What a feeling! After that, I tried to go to my girlfriend's house with no success.
Suddenly, I was in a car and in traffic. Then, I tought: wait a minute, I'm dreaming, I don't wanna drive, and then, with some effort, I could get out of the car and fly again

That were the most lucid parts of dreaming (OBE?) and after that there was some less lucid dream, where I swimmed in the sea and saw some friends..
It was a truly unique experience, never had anything like it before and there where times I had a real lucid experience, just as lucid as when I'm awake, and with different depths of perception.