Is it normal to hear voices inside your head during the night when trying to fall asleep?

i should say that these voices aren't homicidal or suicidal they just don't make much sense and they seem to be either my own voice or voices of random people iv met throughout the day. it's not like i'm thinking in words, these voices seem to be something that i'm not consciously making an effort to enact in my head, that i can't really control. is this abnormal or something that everyone experiences?