Sorry for your loss I feel your pain.I had something happen to me when my mother passed..The night this happened I would wake up crying for no apparent reason..Never have cried while sleeping ever.My wife asked what was wrong?I had no idea so I could not give her a answer..I was able to go back to sleep but woke again crying..I just said screw it I'm going to work early sense I can not sleep..
I get to work a hr later..Wife calls me you need to come home.I asked why and she would not say..I then said TELL ME whats wrong?She then informed my mother was found deceased in her home...I will never forget that night of tears.
Just sharing true experience.