I have used brainwave entrainment before, to aid myself in meditation and to help me visualize. It did help me feel that I got into more of a meditative/trance

I have used brainwave entrainment before, to aid myself in meditation and to help me visualize. It did help me feel that I got into more of a meditative/trance state while using them, but sometimes it worked too well and I fell asleep (it doesn't help that I meditate lying down in my bed). When I actively used stuff like that (many years ago), I had the impression that bineural beats in particular weren't useful. However I tried to Google it and I wasn't able to easily confirm my memory, so I guess it's up in the air for me.