It’s an active imagination. Your subconscious creates images and sounds (also called dreams) when you are asleep (REM sleep). If you are not fully in that “mode” (coming out of it), you will “hear” strange sounds. Because the mind can only work with the memories contained therein, these “sounds” are very familiar to you. Sometimes people will “hear” the voices of long departed loved ones, other times they will “hear” their child or pet (especially if that thought was “active” prior to falling to sleep or if something (such as a song or TV show) triggered it.)
Peri-menopause, perhaps or eating too close to going to bed.
Hormones affect every part of our lives. Scary, huh?
Life sure can be!
.........perhaps you are a light sleeper, either that or your sub-conscious is trying to mind-phk you......
...keep a diary of events. It may be something as minor as the sub-con mind trying to remind you of something - or it could be underlying stress issues. Irrespective, if it persists, consult a doc....
idk, try to stay up for as long as you can maybe. It might pass eventually. But i'm no expert.
Maybe you are stressed?