Reoccurring Dreams/Nightmares

I don't sleep at night and usually nap through the day. One reason for that being that my nightmares replay on loved ones dying. If I don't sleep more than 2 hours I don't go into deep sleep so no nightmares. Another thing is that I'm very scared of the dark. It may be childish but I can't sleep without a nightlight at night unless there's someone close to me. And lastly I write all my music at night because I get very sad at about 3am and as depressing as it is I write the best lyrics and music at that time.

Got a few that I had kinda recently: -I would have this dream where one of my relatives who passed on would just appear sitting on a white chair (the exact same one that one of them actually sat on during his last days) in my room when I was coming home from work or school. We would have a really tearful and cheerful reunion, and then they would explain with over the top stories of how they had to fake their deaths and disappear for a couple of years, or how they did not actually die but were taken away and spent all the time being cured of the disease that they died from. The dream would always end with me hugging them, but then I would start telling myself that this is not real, and I would wake up drenched in sweat and wondering if I really did meet them again. -Basically I am trying to run towards something in the middle of the night but I find that my legs are painfully numb and beyond exhausted. I try walking but that was even worse, so I collapse on my knees and start crawling. For some reason, I was crawling faster than I was walking or running, so I start crawling like a gecko across the floor. Then, I find out that when I run on all fours, I was moving really fast. I keep running and running like that and eventually see that I was chasing some sort of deer or gazelle, and that I was now a cheetah or lion or some other big cat. The weirdest part of this dream was that I found out my brother had the exact same dream too :O

My day is usually pretty stuffed. Sometimes I have to work, college stuff etc. Lately since about a month or 2 I have this dream/scare that just keeps me waking up every few hours so I usually just sleep 4-5 hours a day. My daily plan is kind of intense and I don´t take naps. I sleep more during weekends but it is kinda limited to 6 hours and I used to sleep like 2-3 hours so I improved on that.