Not feeling vibrations?

I use to try it the way you do it, I would sometimes spend 4 to 5 hours each day lying down with binaural beats, and the most I ever got was rapid eye movements and my heart rate would increase a huge amount, but no vibrations happened. I had the vibrations happen before I was trying to get them through this way, and that was simply the way I have now come back to do again, I usually meditate for a bit before I go to sleep, then either set the alarm clock to wake me up about 4 or 5 in the morning, but sometimes I randomly get up at that time anyway, then I stay up for a bit, then go back to bed and usually have a lucid dream where I somehow end up triggering the vibrations. That was one way I had them happen to me which was a few months ago, in the past recent two weeks it was fairly similar, but when I wake up in the middle of the night I no longer have lucid dreams when I go back to sleep for some reason, I end up waking up about 6 or 7 in the morning, and then I might do morning meditation for half an hour, then I will go back to bed, then I just lay there on my back doing nothing and as it goes on I eventually get the vibrations. That is just what has been working for me though, I am sure if you keep at what you are doing it  you will get there eventually, I still try it that way, and I still struggle, because I am sure if you train at it and eventually do well at it, it is something very helpful :)