When I was 10, I used to sleep where my Great Grandfather's office was. My brother had the extra bedroom my Grandfather would use and my parents had the room that him and my Grandmother would share. My Grandmother is still with us, but my Grandfather passed away when I was 5. I had trouble sleeping and a terrible fear of the dark so my parents left the hallway light on for me.
I would have my door open a bit so the light could go in. Sometime in the middle of the night, I woke up to the sound of the shower. There is a bathroom at the end of the hallway that I can see from my room. I looked at it, the door was open a crack and the light was off. I heard the nozzle turn off the water and the shower door open.
Someone got out and closed the shower door. Then I heard the bathroom door creek open without it moving. I heard footsteps walk to the door of my brother's room. The door creeked open, but didn't move. It went inside and I didn't move from the position I was in. I stared at the bathroom door for what seemed like hours, and I fell asleep on my stomach.
Another time, when I was in my bed trying to sleep, I had been having nightmares and so it was hard for me to sleep. Everyone was in bed already and when I finally got my eyes closed, I heard footsteps coming from the living room. It started getting closer to my room. I shut my eyes tight and hoped it wasn't going to stop in front of my room. The footsteps stopped outside my door. I opened my eyes and there was a shadow over my head. I flipped over to look and there was nothing there.
I wasn't too scared because after thinking about it, I thought it was my Grandpa checking on me. I was having a hard time in school and everything, so it made me feel better when something like that would happen. I had strange things happen in that room and even stranger things happen in the one I have now, but that's a whole other story.
You may want to speak to your grandfather out loud and imagine him there, even if you do not see him. Tell him how much you love and appreciate him watching over you, but you do not wish to see him in person or making all that noise at night, because he scares you. If he is truly your grandfather who truly loves you and is watching over you, he will do as you have asked him to do. Nobody, loving and kind, alive or dead wishes to scare somebody they love. I hope that things will improve for you and you will be able to sleep peacefully again.
Blessings, --Abby