I love sleep tracks because you will start the next day right plus I (personally)feel the slepptracks are more effective because your concious mind have to let go and relax.
Put the paraliminal on repeat you have researcher and people who heard from others that will say sleep programming is not effective but that is far from being true.
I had problems with taking the headphone in the middle of the night because they annoyed me and I was breaking one pair a week. So I bought a sleepphones and I love them
Sleep pillows work great too with other programs without dual voices like genius code and abundance for life.
