A few months before my father passed away, he told my mother that his dead mom had come to visit him. He explained to my mom that she looked so real that for a few minutes he forgot that she was gone and asked what she was doing there and how she got there. He said my grandma told him that she was there for him and that everything was going to be okay; he said she told him "I'm here now, I'll take care of you, everything is going to be okay". Realization hit him that he was talking to his dead mother so he closed his eyes and took a few deep breaths and when he opened his eyes again, she was gone. My mom reassured him that everything had been a dream, my dad had recently had one of his legs amputated and so she chalked this up to him being depressed and imagining things.
A few days after, as my mom was assisting my dad out of bed because he needed to go to the restroom; she noticed that the rug next to his bed had gotten tangled up on the wheelchair so she kicked it out of the way and wheeled my dad out of the room. She said she decided that while my dad was in the restroom she would come back and straighten up the room, change the sheets, open the curtains to let some light in etc. So, she left my dad in the restroom, grabbed clean sheets and went in the bedroom to straighten up.
What she saw next made her heart plunge to her stomach, she says that the rug had been straightened out and was neatly laid out next to the bed, the bed had been made and the curtains had been pulled back. She completely freaked out and ran out of the room, she and my dad were supposed to be the only ones in the house at the time.
The next morning my mom walked in the bedroom to see if my dad was up and was ready for breakfast, my dad was just waking up and in that state between sleep and wake when he mumbled, "she didn't mean to scare you, she just wants to help". He didn't remember saying that when asked about it later.
Another time my dad told my mom that his deceased mom and brother had come to visit him and told him not be afraid, that they were going to be with him when it was time. My dad past away two days later.