I wonder if someone here can tell me what this phenomena is, whether it's spirits I hear or what is going on. It started about a year or bit more ago. At first it was just noises. When I would start falling asleep I would sometimes hear a loud clap or a 'krrr' sound, or a loud bang, or something like that. Physically it felt that these sounds were happening in my brain, and they felt pleasant, they relaxed me, as if tensions were being released. Sleep would come right after. Lately, these noises have become voices. And although they don't feel unpleasant, I feel a bit spooked. They don't talk, I just hear a voice saying "ooooh' or 'aaah' or 'boooh' or 'wow' or something like that. Sometimes they seem to be outside of me (as opposed to the noises previously that happened inside my brain). For example, a voice right next to my ear saying 'Ooooh'. Last night, a voice said 'Wow!' and I distinctly felt the sound in my throat, although my lips were not moving. I did not feel that I said 'wow', I felt someone else did. It was very weird. Now, I can relax with all of this if I know that it's nothing to worry about. Does anyone here have experience with this kind of phenomena or knows where I can read up on it? I guess I'm worried that these are mischievous spirits trying to scare me.