Don't Sleep in this room!

This happened a few years back on a new year's day.

All night long I had been out with my friends ; when I came home in the morning I just collapsed on my bed. Then I had a dream in which I was aware I was dreaming.

In the dream I was walking home and somehow all around me, on things like telephone poles and walls, posters had been put up, with words such as “Value your life,” and “No use crying over spilt milk,” in black calligraphic writing.
The street I was walking in was totally deserted and moreover something that looked like blood was splattered all over the place.
I was thinking, god this is some creepy dream!
I kept walking and was nearly home when my mother woke me up.
She had a very serious look on her face and said, “Don’t sleep in this room.”
“Why?” I asked.
She replied, “Right now they have a hotoke-sama (the dead) lying right above your room (we lived in an apartment block). ”

I wondered if that was why I had a strange dream.
Afterwards when we were eating osechi (a new year’s dish) my father uttered, “It was a suicide apparently. He jumped from a building.” When I heard that I was really spooked. Did he regret his rash action after he jumped?